Backpacking

int main(int argc, char** argv) {
    if (!(argc != 3 || *argv[1] < 0 || *argv[1] > 1000000 || *argv[2] < 0 || *argv [2] > 1000000)) {
        int tot = *argv[1] + *argv[2];
        return tot;
    }
    else return -1;
}

Test 1

Verdict: RUNTIME ERROR

Test 2

Verdict: RUNTIME ERROR

Test 3

Verdict: RUNTIME ERROR

Test 4

Verdict: RUNTIME ERROR