Two Sum

Medium Algorithmic Challenges

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Problem Statement

Given an array of integers and a target sum, write a program to find the indices of the two numbers such that they add up to the target.

Input Format

First line contains N and Target. Second line contains N space-separated integers.

Output Format

Print the two indices separated by a space.

Constraints

2 <= N <= 1000

Sample Input

4 9
2 7 11 15

Sample Output

0 1

Explanation

nums[0] + nums[1] = 2 + 7 = 9, so indices are 0 and 1.

Starter Code

#include <stdio.h>

int main() {
    int n, target;
    if (scanf("%d %d", &n, &target) == 2) {
        int arr[n];
        for (int i = 0; i < n; i++) scanf("%d", &arr[i]);
        // Write your code here
    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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