C++ - Das kleine "Ein Mal Eins" als Algorithmus

#include <stdio.h>

int main() {

    int a = 1, i = 0;
    int res;


    for (a; a <= 10; a++) {
        res = a * i;
        printf("\n%d * %d = %d", a, i, res);

        if ( a == 10) {
            i++;
            a = 0;
        }
        if ( i == 10) {
            printf("\n%d * %d = %d", a, i, res);
            return 0;
        }
    }
}