Submission #1143033

#	Time	Username	Problem	Language	Result	Execution time	Memory
1143033		Noproblem29	Furniture (JOI20_furniture)	C++20	5 / 100	5092 ms	16160 KiB

furniture

#include<bits/stdc++.h>
using namespace std;
#ifndef BADGNU
#pragma GCC target("sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#endif
#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 
using namespace __gnu_pbds;
#define ll long long
#define int ll
#define ld long double
#define y1 cheza
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T> using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
template<class T> using ordered_multiset = tree<T,null_type,less_equal<T>,rb_tree_tag,tree_order_statistics_node_update>;
const int N=1010;
const int M=5001;
const int B=447;
const int mod=998244353;
const ll INF=1e18;
const int dx[]={1,-1,0,0};
const int dy[]={0,0,1,-1};
const double eps=1e-6;
int n,m,q;
int a[N][N];
int dp[N][N];
int tin=0;
void test(){
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            // cin>>a[i][j];
            char x;
            cin>>x;
            a[i][j]=x-'0';
        }
    }
    for(int i=0;i<=max(n,m);i++){
        dp[i][0]=INF;
        dp[0][i]=INF;
    }
    dp[0][1]=0;
    cin>>q;
    for(int x,y;q--;){
        cin>>x>>y;
        a[x][y]=1;
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                if(a[i][j]==1){
                    dp[i][j]=INF;
                }
                else{
                    dp[i][j]=min(dp[i-1][j],dp[i][j-1])+1;
                }
            }
        }
        if(dp[n][m]<INF){
            cout<<"1\n";
        }
        else{
            cout<<"0\n";
            a[x][y]=0;
        }
    }
}



/*

*/
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    // cout.tie(nullptr);
    int t2=1;
    // cin>>t2;
    for(int i=1;i<=t2;i++){
        test();
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 95