Submission #691525

#	Time	Username	Problem	Language	Result	Execution time	Memory
691525		Aiperiii	Trampoline (info1cup20_trampoline)	C++14	23 / 100	2083 ms	1048576 KiB

trampoline

#include <bits/stdc++.h>
using namespace std;
int main(){
    int r,c,n;
    cin>>r>>c>>n;
    map < pair <int,int> ,int> mp;
    while(n--){
        int x,y;
        cin>>x>>y;
        pair <int,int> p=make_pair(x,y);
        mp[p]=1;
    }
    int t;
    cin>>t;
    while(t--){
        int x1,y1,x2,y2;
        cin>>x1>>y1>>x2>>y2;
        vector <vector <int> > d(r+1,vector <int> (c+1,-1));
        queue <pair <int,int> > q;
        d[x1][y1]=0;
        pair <int,int> p=make_pair(x1,y1);
        q.push(p);
        while(!q.empty()){
            pair <int,int> curv=q.front();
            q.pop();
            if(curv.first+1<=r){
                pair <int,int> p=make_pair(curv.first+1,curv.second);
                if(mp[curv]==1 && d[curv.first+1][curv.second]==-1){
                    d[curv.first+1][curv.second]=1;
                    q.push(p);
                }
            }
            if(curv.second+1<=c){
                pair <int,int> p=make_pair(curv.first,curv.second+1);
                if(d[curv.first][curv.second+1]==-1){
                    d[curv.first][curv.second+1]=1;
                    q.push(p);
                }
            }
        }
        if(d[x2][y2]==1)
            cout<<"Yes\n";
        else
            cout<<"No\n";
    }
    
}

• Subtask 1: 23 / 23
• Subtask 2: 0 / 20
• Subtask 3: 0 / 11
• Subtask 4: 0 / 19
• Subtask 5: 0 / 27