来点汇编 (

C++

#include <iostream>

int main() {
    int a, b, c1, c2, c3;
    std::cin >> a >> b;
    __asm__(
        "movl %1, %%eax\n\t"
        "movl %2, %%ebx\n\t"
        "addl %%ebx, %%eax\n\t"
        "movl %%eax, %0\n\t"
        : "=r"(c1)
        : "r"(a), "r"(b)
        : "%eax");
    __asm__(
        "movl %1, %%eax\n\t"
        "movl %2, %%ebx\n\t"
        "subl %%ebx, %%eax\n\t"
        "movl %%eax, %0\n\t"
        : "=r"(c2)
        : "r"(a), "r"(b)
        : "%eax");
    __asm__(
        "movl %1, %%eax\n\t"
        "movl %2, %%ebx\n\t"
        "imull %%ebx, %%eax\n\t"
        "movl %%eax, %0\n\t"
        : "=r"(c3)
        : "r"(a), "r"(b)
        : "%eax");
    std::cout << c1 << " " << c2 << " " << c3;
    return 0;
}