제출 #1233416

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1233416		hengliao	COVID tests (CEOI24_covid)	C++20	14.29 / 100	2289 ms	432 KiB

Main

#include<bits/stdc++.h>
using namespace std;

#define F first
#define S second
#define pll pair<ll, ll>
#define vll vector<ll>
#define pb push_back

typedef long long ll;

ll n, t;
double p;

bool qry(string s){
	cout<<"Q "<<s<<endl;
	char re;
	cin>>re;
	if(re=='P') return true;
	return false;
}

void ans(string s){
	cout<<"A "<<s<<endl;
	char re;
	cin>>re;
}

void solve(){
	vector<bool> v(n);

	auto f=[&](ll tar){
		string tep;
		for(ll i=0;i<n;i++){
			if(i<=tar && !v[i]){
				tep+='1';
			}
			else{
				tep+='0';
			}
		}
		return qry(tep);
	};	

	ll pre=-1;

	while(pre<n-1){
		ll lef=pre+1, rig=n-1;
		ll good=-1;
		while(lef<=rig){
			ll mid=(lef+rig)/2;
			if(f(mid)){
				good=mid;
				rig=mid-1;
			}
			else{
				lef=mid+1;
			}
		}
		if(good==-1) break;
		v[good]=1;
		pre=good;
	}

	string tep;
	for(ll i=0;i<n;i++){
		if(v[i]) tep+='1';
		else tep+='0';
	}

	ans(tep);
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	cin>>n>>p>>t;

	while(t--){
		solve();
	}

	return 0;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 10
• Subtask 2: 14.29 / 90