제출 #1327347

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1327347		gdshirpeleng	Trampoline (info1cup20_trampoline)	C++20	0 / 100	2095 ms	1320 KiB

trampoline

#include <bits/stdc++.h>

using namespace std;

using ll=long long;

#define in insert

#define pb push_back

ll xstart,xend,ystart,yend;

vector<vector<bool>>graph;

bool ans=0;

ll R,C,N;

void dfs(ll x,ll y){

    if(x>R || y>C || ans){

        return;

    }

    if(x==xend && y==yend){

        ans=1;

        return;

    }

    if(graph[x][y]){

        dfs(x+1,y);

    }

    dfs(x,y+1);

}

void solve(){

    cin>>R>>C>>N;

    graph.resize(R+1);

    for(int i=1;i<=R;i++){

        graph[i].resize(C+1,0);

    }

    ll u,v;

    for(int i=0;i<N;i++){

        cin>>u>>v;

        graph[u][v]=1;

    }

    ll q;

    cin>>q;

    while(q--){

        cin>>xstart>>ystart>>xend>>yend;

        ans=0;

        dfs(xstart,ystart);

        if(ans){

            cout<<"YES\n";

        }

        else{

            cout<<"NO\n";

        }

    }

}



int main(){

    solve();

    return 0;

}

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