oj.uz

답안 #709739

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
709739 2023-03-14T09:53:37 Z Antekb Furniture (JOI20_furniture) C++17
0 / 100
 11 ms 480 KB 
#include<bits/stdc++.h>

#define st first
#define nd second
#define eb emplace_back
#define pb push_back
#define pp pop_back
#define all(x) x.begin(), x.end()

using namespace std;

using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;

void debug(){cerr<<"\n";}
template<typename H, typename... T>
void debug(H h, T... t){cerr<<h;if(sizeof...(t))cerr<<", ";debug(t...);};
#define deb(x...) cerr<<#x<<" = ";debug(x);

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

const int N=1e3+5, INF=1e9+5;
set<int> S[N];
int dp[N], dp2[N];
int main(){
	//ios_base::sync_with_stdio(0);cin.tie(0);
	int n, m;
	cin>>n>>m;
	for(int i=1; i<=n; i++){
		S[i].insert(m+1);
		if(i!=1)S[i].insert(0);
		for(int j=1; j<=m; j++){
			int x;
			cin>>x;
			if(x)S[i].insert(j);
		}
	}
	dp[0]=1;
	for(int i=1; i<=n; i++){
		auto it=S[i].lower_bound(dp[i-1]-1);
		dp[i]=*it;
	}
	
	int q;
	cin>>q;
	while(q--){
		/*for(int i=1; i<=n; i++){
			deb(dp[i], dp2[i]);
		}*/
		int x, y;
		cin>>x>>y;
		S[x].insert(y);
		dp[0]=1;
		for(int i=1; i<=n; i++){
			auto it=S[i].lower_bound(dp[i-1]-1);
			dp[i]=*it;
		}
		if(dp[n]){
			cout<<1<<"\n";
		}
		else{
			cout<<0<<"\n";
			S[x].erase(y);
		}
	}
}

Subtask #1
0.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Incorrect 11 ms 480 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 95.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Incorrect 11 ms 480 KB Output isn't correct
3 Halted 0 ms 0 KB -