How do you find the sum of Subarray?

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How do you find the sum of Subarray?

Algorithm:

  1. Traverse the array from start to end.
  2. From every index start another loop from i to the end of array to get all subarray starting from i, keep a variable sum to calculate the sum.
  3. For every index in inner loop update sum = sum + array[j]
  4. If the sum is equal to the given sum then print the subarray.

What is Subarray C?

A subarray is a contiguous part of array. An array that is inside another array. For example, consider the array [1, 2, 3, 4], There are 10 non-empty sub-arrays. The subarrays are (1), (2), (3), (4), (1,2), (2,3), (3,4), (1,2,3), (2,3,4) and (1,2,3,4).

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How do I create a subarray in C++?

Approach: We use two pointers start and end to maintain the starting and ending point of the array and follow the steps given below:

  1. Stop if we have reached the end of the array.
  2. Increment the end index if start has become greater than end.
  3. Print the subarray from index start to end and increment the starting index.

What is Subarray example?

How to find the maximum sum of a subarray of size k?

Given an array of integers and a number k, find the maximum sum of a subarray of size k. Input : arr [] = {100, 200, 300, 400} k = 2 Output : 700 Input : arr [] = {1, 4, 2, 10, 23, 3, 1, 0, 20} k = 4 Output : 39 We get maximum sum by adding subarray {4, 2, 10, 23} of size 4.

How to get all the subarray of an array in Python?

1 Traverse the array from start to end. 2 From every index start another loop from i to the end of array to get all subarray starting from i, keep a variable sum to calculate the sum. 3 For every index in inner loop update sum = sum + array [j] 4 If the sum is equal to the given sum then print the subarray.

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What is an efficient solution to sum of subarrays?

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 sum of previous subarray (or window) of size k. Except first subarray of size k, for other subarrays, we compute sum by removing first element of last window and adding last element of current window.

How do you find the sum of an array in algorithm?

Algorithm: 1 Traverse the array from start to end. 2 From every index start another loop from i to the end of array to get all subarray starting from i, keep a variable sum to calculate the sum. 3 For every index in inner loop update sum = sum + array [j] 4 If the sum is equal to the given sum then print the subarray.