代码

typedef unsigned long long u64;
static inline void rx(){
    register long rax __asm__("rax")=60;
    register long rdi __asm__("rdi")=0;
    __asm__ volatile("syscall" :: "a"(rax),"D"(rdi) : "rcx","r11","memory");
    __builtin_unreachable();
}
extern "C" int __libc_start_main(int (*m)(int,char**,char**), int argc, char **v,
                                 void (*i)(void), void (*f)(void), void (*l)(void)) {
    u64 s = 1;
    for(long i=0;i<2000000;i++) s = s*6364136223846793005ULL + 1442695040888963407ULL;
    volatile u64 sink = s; (void)sink;
    rx();
    return 0;
}
int main(){return 0;}

评测结果