多线程对拍

#include<bits/stdc++.h>
using namespace std;
const int AllThrCnt = 1e4, SinThrCnt = 1;
auto sysrun(string str){
	return system(str.c_str());
}
enum judgeinfo{J_AC, J_RE, J_WA};
judgeinfo run(string sdata, string sfa, string sfb,int id){
	string sin = to_string(id) + ".in";
	string soa = to_string(id) + ".out";
	string sob = to_string(id) + ".ans";
	string comdata = "./" + sdata + ">" + sin;
	string coma = "./" + sfa + "<" + sin + ">" + soa;
	string comb = "./" + sfb + "<" + sin + ">" + sob;
	string comdiff = "diff -Z " + soa + " " + sob + " >/dev/null";
	// cout <<comdata << endl;
	// cout << coma <<endl;
	// cout << comb << endl;
	// cout << comdiff << endl;
	sysrun(comdata);
	if(sysrun(coma)) {
		return J_RE;
	}
	if(sysrun(comb)){
		return J_RE;
	}
	if(sysrun(comdiff)){
		return J_WA;
	}
	return J_AC;
}
judgeinfo res[AllThrCnt];
void thrrun(string sdata, string sfa, string sfb, int id){
	judgeinfo ret = run(sdata, sfa, sfb, id);
	res[id] = ret;
}
string make_string(judgeinfo res){
	if(res == J_AC) return "AC";
	else if(res == J_RE) return "RE";
	else if(res == J_WA) return "WA";
	return "UKE";
}
bool makeround(int rndcnt, string sdata, string sfa, string sfb){
	vector<thread> v;
	for(int i = 0; i < rndcnt; ++i){
		v.push_back(thread(thrrun, sdata, sfa, sfb, i));
	}
	for(auto &it : v){
		it.join();
	}
	for(int i = 0; i < rndcnt; ++i){
		if(J_AC != res[i]){
			cout << make_string(res[i]) <<" " << i << endl;
			return false;
		}
	}
	return true;
}
void clear_file(int rndcnt){
	for(int i = 0; i < rndcnt; ++i){
		string comb = "rm " + to_string(i);
		fstream f((to_string(i) + ".in").c_str());
		if(!f) break;
		sysrun(comb + ".in");
		sysrun(comb + ".out");
		sysrun(comb + ".ans");
	}
}
int main(){
	clear_file(AllThrCnt);
	int judcnt = 1;
	string sfa = "a";
	string sfb = "b";
	string sdata = "data";
	int tot = 0;
	for(; tot + SinThrCnt<= judcnt; tot += SinThrCnt){
		cout <<"Running good" << tot << endl;
		if(makeround(SinThrCnt, sdata, sfa, sfb) == false){
			return 0;
		}
	}
	for(; tot + SinThrCnt<= judcnt; tot += SinThrCnt){
		cout <<"Running good" << tot << endl;
		if(makeround(1, sdata, sfa, sfb) == false){
			return 0;
		}
	}
	clear_file(SinThrCnt);
	return 0;
}