qfedu-c-level/day7/d10/main.c

#include "./a.h"

int main(int argc, char const *argv[])
{
    int ret = sum(100, 200);
    printf("100 + 200 = %d\n", ret);
    printf("ret - 60 = %d\n", sub(ret, 60));
    return 0;
}