// CWE-369: divide by zero (divisor from argv, no check).
#include <stdlib.h>
__attribute__((noinline)) int vuln(int d) {
    return 100 / d; // sink: division by attacker-controlled d
}
int main(int argc, char** argv) {
    if (argc > 1)
        return vuln(atoi(argv[1]));
    return 0;
}