By using this site, you agree to the use of cookies, our policies, copyright terms and other conditions. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. After sorting it, the last/first element is the maximum. Time Complexity: O(N). The stream represents a sequence of objects from a source, which supports aggregate operations. We have discussed an O(n) solution for a sorted array (See steps 2, 3, and 4 of Method 1) in this article. It has a no exception throw guarantee.2. The algorithm can be implemented as follows in C++, Java, and Python: The time complexity of the above solution is O(n) and requires O(n) extra space, where n is the size of the input. In other words, the time to find the maximum increases linearly as array size grows. See your article appearing on the GeeksforGeeks main page and help other Geeks. Data Structures & Algorithms- Self Paced Course, Count number of unique Triangles using STL | Set 1 (Using set), Multimap in C++ Standard Template Library (STL), Computing Index Using Pointers Returned By STL Functions in C++, array::front() and array::back() in C++ STL, std::istream_iterator and std::ostream_iterator in C++ STL. If the range is 1 to N then the index of every array element will be the same as (value 1). int main() { int c, array[100], size, location, maximum; printf("Input number of elements in array\n"); scanf("%d", &size); location = find_maximum(array, size); maximum = array[location]; printf("Maximum element location = %d and value = %d.\n", location + 1, maximum); return 0;}. Iterate through all of the elements of your array once: O(n) For each element visited, check to see if its key already exists in the HashMap: O(1), amortized If it does The apply and spread methods had a limitation of 65536 which came from the limit of the maximum number of arguments. After sorting it, the last/first element is the maximum. Input: arr[] = {1, 2, 4, 6, 3, 7, 8}, N = 8Output: 5Explanation: The missing number between 1 to 8 is 5, Input: arr[] = {1, 2, 3, 5}, N = 5Output: 4Explanation: The missing number between 1 to 5 is 4, Approach 1 (Using Hashing): The idea behind the following approach is, The numbers will be in the range (1, N), an array of size N can be maintained to keep record of the elements present in the given array. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, ArrayList get(index) Method in Java with Examples, Find the index of an array element in Java. The length property can be invoked by using the dot (.) Increment low if the sum is less than the expected sum; otherwise, decrement high if the sum is more than the desired sum. Complete Test Series For Product-Based Companies, Data Structures & Algorithms- Self Paced Course, Find the only missing number in a sorted array, Find the smallest positive number missing from an unsorted array : Hashing Implementation, Find the missing number in range [1, N*M+1] represented as Matrix of size N*M, Find the smallest positive number missing from an unsorted array | Set 3, Find the Missing Number in a sorted array, Find the missing number in Arithmetic Progression, Find the missing number in unordered Arithmetic Progression, C++ Program to Find the smallest missing number, Java Program to Find the smallest missing number, Python3 Program to Find the smallest missing number. We can also sort the array in ascending/descending order to find the largest number in it. Follow the steps mentioned below to implement the idea: Time Complexity: O(N)Auxiliary Space: O(1). Programming Simplified is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The time complexity of this solution is O(n*k). size() function is used to return the size of the list container or the number of elements in the list container. There isn't any need to tell the size between the brackets, because the initialization and its size are specified by the count of the elements between the curly brackets. The time complexity of the above solution is O(n 2) and doesnt require any extra space, where n is the size of the input.. 2. Exercise: Extend the solution to print all pairs in the array having a given sum. To find missing, traverse the array again and look for a positive value. Repeat it till the last index of the array. Following is the C++, Java, and Python implementation based on the idea: The time complexity of the above solution is O(n.log(n)) and doesnt require any extra space. else multiply the (absolute value of (current element) 1)th index with -1. This is because we cannot initialize them to 0 because then the minimum element will be 0 itself if the array contains all positive integers. The time complexity of the program is O(n), as the time used depends on the size of the input array. How to determine length or size of an Array in Java? Now find the sum of all the elements in the array and subtract it from the sum of the first N natural numbers. operator followed by the array name. There's a variation of the QuickSort (QuickSelect) algorithm which has an average run time of O(n); if you sort first, you're down to O(n log n).It actually finds the nth smallest item in a list; for a median, you just use n = half the list length. Time Complexity: O(N), requires (N-1) comparisonsAuxiliary Complexity: O(1), Approach 5 (Use elements as Index and mark the visited places as negative): Use the below idea to get the approach. Time Complexity: O(n)Auxiliary Space: O(1). This article is contributed by Abhishek Gupta. How to deallocate memory without using free() in C? Example: So, the minimum of the array is -1 and the maximum of the array is 35. Below is the implementation of the above approach: Time Complexity: O(N)Auxiliary Space: O(N). Let this element be x. We can use a hash table to solve this problem in linear time. Sorting the array is unnecessary and inefficient. "Maximum element is present at location %d and its value is %d. There are several methods to solve this problem using brute-force, sorting, and hashing. Sort all pairs by the first element. Auxiliary Space: O(1) A Better Solution is to use sorting. You can use a HashMap to count the occurrences of each unique element in your double array, and that would:. Java Array Append In Java, an array is a collection of fixed size. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. This approach is demonstrated below in C, Java, and Python: The time complexity of the above solution is O(n2) and doesnt require any extra space, where n is the size of the input. Java provides an attribute length that determines the length of an array. Below is the implementation of Binary search. The time complexity of the program is O(n), as the time used depends on the size of the input array. Approach 4 (Using Cyclic Sort): The idea behind it is as follows: All the given array numbers are sorted and in the range of 1 to n-1. We are sorry that this post was not useful for you! Array length Attribute. Our function returns the index at which the maximum element is present. The introduction of array class from C++11 has offered a better alternative for C-style arrays. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Find maximum (or minimum) sum of a subarray of size k, Sliding Window Maximum (Maximum of all subarrays of size K), Finding sum of digits of a number until sum becomes single digit, Program for Sum of the digits of a given number, Compute sum of digits in all numbers from 1 to n, Count possible ways to construct buildings, Maximum profit by buying and selling a share at most twice, Maximum profit by buying and selling a share at most k times, Maximum difference between two elements such that larger element appears after the smaller number, Given an array arr[], find the maximum j i such that arr[j] > arr[i], Sliding Window Maximum (Maximum of all subarrays of size k) using stack in O(n) time, Next Greater Element (NGE) for every element in given Array, Next greater element in same order as input, Maximum product of indexes of next greater on left and right, Stack | Set 4 (Evaluation of Postfix Expression), Convert Infix expression to Postfix expression, Write a program to reverse an array or string, Largest Sum Contiguous Subarray (Kadane's Algorithm), Introduction to Stack - Data Structure and Algorithm Tutorials, Top 50 Array Coding Problems for Interviews, Maximum and minimum of an array using minimum number of comparisons. What are the default values of static variables in C? For this purpose, we will use two variables max and min and then compare them with each element and replace them with the appropriate number so as to get the maximum and minimum value at last. Create a character array of the same length as of string. Find the sum of the numbers in the range [1, N] using the formula N * (N+1)/2. How to pass a 2D array as a parameter in C? Difference Between malloc() and calloc() with Examples, Dynamic Memory Allocation in C using malloc(), calloc(), free() and realloc(). Every array has an in-built length property whose value is the size of the array. An Efficient Solution is based on the fact that sum of a subarray (or window) of size k can be obtained in O(1) time using the sum of the previous subarray (or window) of size k. Except for the first subarray of size k, for other subarrays, we compute the sum by removing the first element of the last window and adding the last element of the current window. Given an array arr[] of size N-1 with integers in the range of [1, N], the task is to find the missing number from the first N integers. All three operators are applicable where the left argument is of type byte, short, int, or long.The first two operators can also be applied where the left argument is of type BigInteger.If the left argument is a BigInteger, the result will be of type BigInteger; otherwise, if the left argument is a long, the result will be of type long; otherwise, the result will be of type int: These are discussed below: A naive solution is to consider every pair in the given array and return if the desired sum is found. Follow the steps below to solve the problem: Using Sorting. Do NOT follow this link or you will be banned from the site. The elements of an array are stored in a contiguous memory location. Then compare it with the second element. By using our site, you We can also sort the array in ascending/descending order to find the largest number in it. But the binary search can only be used if the array is sorted. If the difference is seen before, print the pair and return. Time Complexity: O(N*N), Iterating over the array of size N for all the N elements. How to add an element to an Array in Java? No extra space is needed. How to Find Size of an Array in C/C++ Without Using sizeof() Operator? Using the length of an array we can get an IntStream of array indices from 0 to n-1, where n is the length of an array.Below is the implementation of Stream API approach. Time Complexity: O(N)Auxiliary Space: O(1). Shows error when a parameter is passed. Below is the implementation of the above idea. But the binary search can only be used if the array is sorted. In order to find the index of an element Stream package provides utility, IntStream. This website uses cookies. Java array is a data structure where we can store the elements of the same data type. // increment `low` index if the total is less than the desired sum; // decrement `high` index if the total is more than the desired sum, # Function to find a pair in an array with a given sum using sorting, # maintain two indices pointing to endpoints of the list, # reduce the search space `nums[lowhigh]` at each iteration of the loop, # loop till the search space is exhausted. Java Program to Find the Index of the TreeSet Element, Java Program to Find element at given index after a number of rotations, Remove an Element at Specific Index from an Array in Java, Find index of the element differing in parity with all other array elements, Find index of an extra element present in one sorted array, Maximum length palindromic substring for every index such that it starts and ends at that index, Maximum index a pointer can reach in N steps by avoiding a given index B - Set 3 (Binary Search). 2. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. Understanding volatile qualifier in C | Set 2 (Examples). Size implies the total number of elements that an array can contain. In this approach, we will convert the array into ArrayList, and then we will use the indexOf method of ArrayList to get the index of the element. Now, add the original array elements and element(s) you would like to append to this new array. It provides utility methods for collections, caching, primitives support, concurrency, common annotations, string processing, I/O, and validations. Data Structures & Algorithms- Self Paced Course, First subarray having sum at least half the maximum sum of any subarray of size K, Minimum cost to convert all elements of a K-size subarray to 0 from given Ternary Array with subarray sum as cost, Maximum subarray size, such that all subarrays of that size have sum less than k, Minimum size Subarray with maximum sum in non-increasing order, Find minimum subarray sum for each index i in subarray [i, N-1], Maximum sum subarray of size K with sum less than X, Maximum subarray sum possible after removing at most one subarray, Maximum length of subarray such that sum of the subarray is even, C++ Program for Size of The Subarray With Maximum Sum. In Eclipse if Java is mapped to Java version 11 and in pom.xml it is mapped to Java version 8. 1. public class Array { int[] data; public Array() { data = new int[] {10,20,30,40,50,60,71,80,90,91}; } } As you see the bracket are empty. C program to find the largest number in an array using a function and without it. Array classes are generally more efficient, light-weight and reliable than C-style arrays. Traverse over the string to copy character at the ith index of string to ith index in the array. By using our site, you So, we can store a fixed set of elements in an array. The complexity of sorting using comparison sorting algorithms is O(nlogn). Here is how the code will look like: This will give the value of the missing element. In the second traversal, find the smallest element greater than x. "Maximum element found at location %ld and its value is %ld. For this purpose, we will use two variables max and min and then compare them with each element and replace them with the appropriate number so as to get the maximum and minimum value at last. Read our, // Naive method to find a pair in an array with a given sum, // start from the i'th element until the last element, // we reach here if the pair is not found, # Naive method to find a pair in a list with the given sum, # start from the i'th element until the last element, # No pair with the given sum exists in the list, // Function to find a pair in an array with a given sum using sorting, // maintain two indices pointing to endpoints of the array, // reduce the search space `nums[lowhigh]` at each iteration of the loop, // loop till the search space is exhausted. How to print array in Java. Enter your email address to subscribe to new posts. Auxiliary Space: O(1) Find the two repeating elements in a given array using Visited Array: The idea is to keep track of elements. Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. If eclipse Java build path is mapped to 7, 8 and in Project pom.xml Maven properties java.version is mentioned higher Java version(9,10,11, etc..,) than 7,8 you need to update in pom.xml file. Binary search: Binary search can also be used to find the index of the array element in an array. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to review-team@geeksforgeeks.org. How to determine length or size of an Array in Java? The idea is to sort the given array in ascending order and maintain search space by maintaining two indices (low and high) that initially points to two endpoints of the array.Then reduce the search space nums[lowhigh] at each iteration of the Java program to find Largest, Smallest, Second Largest, Second Smallest in an array; Find the 3rd largest number in a Java array. We will use recursion to find the first index of the given element. Stream API: Stream is a new abstract layer introduced in Java 8. You can also store all indexes at which it's present in the array. If the pair is found, return it. But, you can always create a new one with specific size. Then reduce the search space nums[lowhigh] at each iteration of the loop by comparing the sum of elements present at indices low and high with the desired sum. Note: There are no duplicates in the list. Delf Stack is a learning website of different programming languages. Level order traversal in the spiral form in Python, generate() and generate_n() functions in C++, Copy elements of one vector to another in C++, Image Segmentation Using Color Spaces in OpenCV Python. # increment `low` index if the total is less than the desired sum; # decrement `high` index if the total is more than the desired sum, // Function to find a pair in an array with a given sum using hashing, // check if pair (nums[i], target - nums[i]) exists, // if the difference is seen before, print the pair, // store index of the current element in the map, // check if pair (nums[i], target-nums[i]) exists, # Function to find a pair in an array with a given sum using hashing, # if the difference is seen before, print the pair, # store index of the current element in the dictionary, Sort an array of 0s, 1s, and 2s (Dutch National Flag Problem), Shuffle an array using FisherYates shuffle algorithm. In 2019, the limit is the maximum size of the call stack, meaning that the maximum size for the numbers in case of apply and spread solutions is approximately 120000. After that, you need to enter the elements of the array. Return or perform the operation on the character array. Each utility class has an indexOf() method that returns the index of the first appearance of the element in array.Below is the implementation of Guava. Using stream, you can process data in a declarative way similar to SQL statements. The time complexity of this solution is O(n*k). We can extend this solution for the rotated arrays as well. Run in linear O(n) time, and ; Require O(n) space; Psuedo code would be something like this:. Java provides us with an inbuilt function which can be found in the Arrays library of Java which will return the index if the element is present, else it returns -1. Approach 2 (Using summation of first N natural numbers): The idea behind the approach is to use the summation of the first N numbers. Program to find sum of elements in a given array; Program to find largest element in an array; Find the largest three distinct elements in an array; Find all elements in array which have at-least two greater elements; Program for Mean and median of an unsorted array; Program for Fibonacci numbers; Program for nth Catalan Number Find the 2nd largest number in a Java array. The introduction of array class from C++11 has offered a better alternative for C-style arrays. Traverse the array. How to Find the Element Index in LinkedHashSet in Java? Today we will see how to find the maximum and minimum element in an array in Java. No votes so far! Now if you look at the code you will see I have initialized min and max to MAXIMUM and MINUMUM integer values respectively. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Possible to form a triangle from array values, Search an element in a sorted and rotated Array, Find if there is a pair with a given sum in the rotated sorted Array, Find maximum value of Sum( i*arr[i]) with only rotations on given array allowed, Maximum sum of i*arr[i] among all rotations of a given array, Find the Rotation Count in Rotated Sorted array, Quickly find multiple left rotations of an array | Set 1, Find the Minimum element in a Sorted and Rotated Array, Reversal algorithm for right rotation of an array, Find a rotation with maximum hamming distance, Queries on Left and Right Circular shift on array, Print left rotation of array in O(n) time and O(1) space, Find element at given index after a number of rotations, Split the array and add the first part to the end, Reverse digits of an integer with overflow handled, Write a program to reverse digits of a number, Write a program to reverse an array or string, Rearrange array such that arr[i] >= arr[j] if i is even and arr[i]<=arr[j] if i is odd and j < i, Rearrange positive and negative numbers in O(n) time and O(1) extra space, Rearrange array in alternating positive & negative items with O(1) extra space | Set 1, Rearrange array in alternating positive & negative items with O(1) extra space | Set 2, Largest Sum Contiguous Subarray (Kadane's Algorithm), Calculate the sum of the first N natural numbers as, If the absolute value of current element is greater than. For every pair, do a binary search for the second element in the given array, i.e., check if the second element of this pair exists as the first element in the array. Given an array of N elements and an element K, find the index of an array element in Java. Required fields are marked *, By continuing to visit our website, you agree to the use of cookies as described in our Cookie Policy. Modification for Overflow: The approach remains the same but there can be an overflow if N is large. Approach: The idea is: First find the largest element in an array which is the pivot point also and the element just after the largest is the smallest element. Time Complexity: O(N) Auxiliary Space: O(N) Approach 2 (Using summation of first N natural numbers): The idea behind the approach is to use the summation of the first N numbers. Given an array of integers and a number k, find the maximum sum of a subarray of size k. A Simple Solution is to generate all subarrays of size k, compute their sums and finally return the maximum of all sums. In order to avoid integer overflow, pick one number from the range [1, N] and subtract a number from the given array (dont subtract the same number twice). Guava provides several-utility class pertaining to be primitive like Ints for int, Longs for long, Doubles for double etc. Guava: Guava is an open source, Java-based library developed by Google. Approach Using size() method. By using our site, you It provides us with dynamic arrays in Java. You cannot increase or decrease its size. Below are the steps: Create an object of SimpleDateFormat class and converts string format to date object. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, const_cast in C++ | Type Casting operators, reinterpret_cast in C++ | Type Casting operators. "Maximum element location = %d and value = %d. We also check if difference (nums[i], target - nums[i]) already exists in the map or not. Given an unsorted integer array, find a pair with the given sum in it. Free but high-quality portal to learn about languages like Python, Javascript, C++, GIT, and more. 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Find a triplet with the given sum in an array, 4Sum Problem | Quadruplets with a given sum. In other words, the time to find the maximum increases linearly as array size grows. JAVA Programming Foundation- Self Paced Course, Data Structures & Algorithms- Self Paced Course, Minimum index i such that all the elements from index i to given index are equal, Farthest index that can be reached from the Kth index of given array by given operations. To append element(s) to array in Java, create a new array with required size, which is more than the original array. Be the first to rate this post. In the first traversal find the minimum element. int main(){ int array[100], size, c, location = 0; printf("Enter the number of elements in array\n"); scanf("%d", &size); for (c = 0; c < size; c++) scanf("%d", &array[c]); for (c = 1; c < size; c++) if (array[c] > array[location]) location = c; printf("Maximum element is present at location %d and its value is %d.\n", location+1, array[location]); return 0;}. Similarly, we can find the minimum element in an array. Your email address will not be published. How to add an element to an Array in Java? ; Find the time difference The size of the ArrayList can be determined easily with the help of the size() method. Binary search: Binary search can also be used to find the index of the array element in an array. Time Complexity: O(n 2) . int find_maximum(int a[], int n) { int c, index = 0; for (c = 1; c < n; c++) if (a[c] > a[index]) index = c; int main(){ long array[100], *maximum, size, c, location = 1; printf("Enter the number of elements in array\n"); scanf("%ld", &size); for (c = 0; c < size; c++) scanf("%ld", &array[c]); for (c = 1; c < size; c++) { if (*(array+c) > *maximum) { *maximum = *(array+c); location = c+1; } }, printf("Maximum element found at location %ld and its value is %ld.\n", location, *maximum); return 0;}. Today we will see how to find the maximum and minimum element in an array in Java. Only one traversal of the array is needed.Auxiliary Space: O(1). Download Maximum element in array program. 2. Vector of Vectors in C++ STL with Examples, static_cast in C++ | Type Casting operators, Initialize a vector in C++ (7 different ways), Map in C++ Standard Template Library (STL). Java provides us with an inbuilt function which can be found in the Arrays library of Java which will return the index if the element is present, else it returns -1. There is also a nice way with Java 8 Streams: int[] subArr = IntStream.range(startInclusive, endExclusive) .map(i -> src[i]) .toArray(); The benefit about this is, it can be useful for many different types of "src" array and helps to improve writing pipeline operations on the stream. Examples: An element in an array of N integers can be searched using the below-mentioned methods. Method 1: Use SimpleDateFormat and Date class to find the difference between two dates. Instead of using an array, use an implementation of java.util.List such as ArrayList. How to dynamically allocate a 2D array in C? Find the sum of the numbers in the range [1, N] using the formula N * (N+1)/2.Now find the sum of all the elements in the array and subtract it from the sum of the first N natural numbers. While traversing, use the absolute value of every element as an index and make the value at this index as negative to mark it visited. The complexity will be O(log n). The idea is to sort the given array in ascending order and maintain search space by maintaining two indices (low and high) that initially points to two endpoints of the array. The idea is to insert each array element nums[i] into a map. In below code array size 0 after manipulation of using Arrays.copyOf the size of String array is increased to 4. We also print the index at which it's present. Whenever an element is encountered that is already present then print that element. If the second element is greater than the first, the index is updated. Maximum Size of the Array. 3. C Hello worldPrint IntegerAddition of two numbersEven oddAdd, subtract, multiply and divideCheck vowelRoots of quadratic equationLeap year program in CSum of digitsFactorial program in CHCF and LCMDecimal to binary in CnCr and nPrAdd n numbersSwapping of two numbersReverse a numberPalindrome numberPrint PatternDiamondPrime numbersArmstrong numberArmstrong numbersFibonacci series in CFloyd's triangle in CPascal triangle in CAddition using pointersMaximum element in arrayMinimum element in arrayLinear search in CBinary search in CReverse arrayInsert element in arrayDelete element from arrayMerge arraysBubble sort in CInsertion sort in CSelection sort in CAdd matricesSubtract matricesTranspose matrixMatrix multiplication in CPrint stringString lengthCompare stringsCopy stringConcatenate stringsReverse string Palindrome in CDelete vowelsC substringSubsequenceSort a stringRemove spacesChange caseSwap stringsCharacter's frequencyAnagramsC read fileCopy filesMerge two filesList files in a directoryDelete fileRandom numbersAdd complex numbersPrint dateGet IP addressShutdown computer. The code when executed will give the following result: How to Rotate a Matrix in C++ ( Both Clockwise and Anticlockwise ), Finding out the next greater number from the same set of digits using C++, Your email address will not be published. However, it may be slower than standard arrays but can be helpful in programs where lots of manipulation in the array is needed. The size of the array in the example mentioned is 5. If the maximum element is present two or more times in the array, then the index at which it occurs first is printed or the maximum value at the smallest index. This way there wont be any integer overflow. Parse both start_date and end_date from a string to produce the date, this can be done by using parse() method of the simpleDateFormat class. Approach 3 (Using binary operations): This method uses the technique of XOR to solve the problem. By using our site, you An Efficient Solution is based on the fact that sum of a subarray (or window) of size k can be obtained in O(1) time using the sum of the previous subarray (or window) of size k. Except for the first subarray Algorithm to get max value: we assume that it's present at the beginning of the array. 4. array::size() size() function is used to return the size of the list container or the number of elements in the list container. The elements entered in the array are as follows: 1 2 35 0 -1. Home | About | Contact | Programmer Resources | Sitemap | Privacy | Facebook, C C++ and Java programming tutorials and programs. The above solution requires two traversals of the input array. An ArrayList has an array backend which holds values in a list, but the array size is automatically handles by the list. You can easily modify the program to print the largest index at which it's present. Using this method, we can overcome the problem of Method 1 which occurs when the smallest element is present in an array more than one time. Follow the below steps to implement the idea: Below is the implementation of the above approach. A Simple Solution is to generate all subarrays of size k, compute their sums and finally return the maximum of all sums. 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