Question

How to find the combination of three elements in an array whose sum is equal to N in C

Answer 1

#include <stdio.h>

void PrintThreeElements(int arr[], int size, int N) {
    for (int i = 0; i < size; i++) {
        for (int j = i + 1; j < size; j++) {
            for (int k = j + 1; k < size; k++) {
                if (arr[i] + arr[j] + arr[k] == N) {
                    printf("%d %d %d", arr[i], arr[j], arr[k]);
                    return;
                }
            }
        }
    }
}

int main()
{
    int arr[] = { 7, 3, 2, 6, 4, 10, 5, 9, 8, 12 };
    int N = 24;
    int size = sizeof(arr) / sizeof(arr[0]);

    PrintThreeElements(arr, size, N);

    return 0;
}




/*
run:

7 5 12

*/

 

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