Closest Sum Problem Statement

Given an array of integers ARR of size N and an integer target, find three integers in ARR such that their sum is closest to the target. If there are two closest sums, return the smallest sum.

Input:

The first line contains an integer 'T' denoting the number of test cases.
For each test case:
- The first line contains an integer 'N', the size of the array.
- The second line contains 'N' space-separated integers representing the array.
- The third line contains an integer, the target.

Output:

For each test case, output the sum of the triplet that is closest to the target on a new line.

Example:

Input:
ARR = [1, 2, 3, 4, 5], target = 10
Output:
9

Constraints:

  • 1 <= T <= 10
  • 3 <= N <= 100
  • -105 <= ARR[i] <= 105
  • -3 * 105 <= target <= 3 * 105

Note:

You are not required to print anything; just implement the function as directed.

AnswerBot
3d

The task is to find three integers in an array whose sum is closest to a given target.

  • Iterate through all possible triplets in the array to find the closest sum to the target.

  • Keep track of the closest...read more

Vaishu Sumthankar
2y

Two - Pointer Approach By sorting the array the efficiency of the algorithm can be improved. This efficient approach uses the two-pointer technique. After sorting the array, traverse the array and f...read more

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