代码

#include <cstdio>
#include <cstdlib>

int main() {
    static char buf[1 << 26], *p = buf;
    fread(buf, 1, 1 << 26, stdin);
    int a = strtol(p, &p, 10);
    int b = strtol(p, &p, 10);
    printf("%d\n", a + b);
}

评测结果