Submission #845040

#	Time	Username	Problem	Language	Result	Execution time	Memory
845040		jamkel19	Trampoline (info1cup20_trampoline)	C++14	23 / 100	556 ms	1048576 KiB

trampoline

#include <bits/stdc++.h>
using namespace std;
#define st first
#define nd second
typedef long long ll;
void dfs(vector<vector<bool>>&a,vector<vector<vector<int>>>&b,int x,int y,int &n, int &m)
{
    if(b[x][y][x]<m+1)
    {
        return;
    }
    b[x][y][x]=y;
    if(a[x][y] && x<n-1)
    {
        dfs(a,b,x+1,y,n,m);
        for(int w=x+1;w<n;w++)
        {
            b[x][y][w]=b[x+1][y][w];
        }
    }
    if(y<m-1)
    {
        dfs(a,b,x,y+1,n,m);
        if(!a[x][y])
        {
           for(int w=x+1;w<n;w++)
            {
                b[x][y][w]=b[x][y+1][w];
            } 
        }
    }
}
int main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n,m,g,q;
    cin>>n>>m>>g;
    vector<vector<bool>>a(n,vector<bool>(m));
    for(int i=0;i<g;i++)
    {
        int x,y;
        cin>>x>>y;
        a[x-1][y-1]=true;
    }
    vector<vector<vector<int>>>b(n,vector<vector<int>>(m,vector<int>(n,m+1)));
    for(int i=0;i<n;i++)
    {
        dfs(a,b,i,0,n,m);
    }
    cin>>q;
   // for(int i=0;i<n;i++)
   // {
   ///     cout<<b[1][1][i]<<endl;
    ////}
    while(q--)
    {
        int x1,y1,x2,y2;
        cin>>x1>>y1>>x2>>y2;
        x1--;x2--;
        y1--;y2--;
        if(b[x1][y1][x2]<=y2)
        {
            cout<<"YES"<<endl;
        }
        else
        {
            cout<<"NO"<<endl;
        }
    }
}

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