Please revise this code (it works perfectly) by minimize unneccessory mulitplication or function calls.

typedef int list[N][N];

void test(list a, int x, int y) {

for (int i = 0; i < N; ++i) {

//nested loop, since chegg does not support tab

for (int j = 0; j < N; ++i) {

a[i][j] = i * x * y + j;

}

}

}