max2d.c

#include"stdio.h"

void iota(int *arr, int len) {
    for (int i = 0; i < len; i++) {
        arr[i] = i;
    }
}

int main() {
    int a[4][4];
    iota(a, 16);

    int m = a[0][0];
    int mr = 0, mc = 0;
    for (int i = 0; i < 4; i++) 
    for (int j = 0; j < 4; j++)
    if (a[i][j] > m) {m = a[i][j]; mr = i; mc = j;};

    printf("%d %d", mr, mc);
}