Submission #423360

#	Time	Username	Problem	Language	Result	Execution time	Memory
423360		DanerZein	Furniture (JOI20_furniture)	C++14	0 / 100	5025 ms	332 KiB

furniture

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int ma[110][110];
int X[3]={0,1};
int Y[3]={1,0};
int n,m;
bool floyd(int x,int y){
  if(x==n-1 && y==m-1) return 1;
  for(int k=0;k<2;k++){
    int xi=x+X[k];
    int yi=y+Y[k];
    if(yi<m && xi<n &&  ma[xi][yi]!=1 && floyd(xi,yi)) return 1;
  }
  return 0;
}
int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL); cout.tie(NULL);
  cin>>n>>m;
  for(int i=0;i<n;i++) for(int j=0;j<m;j++) cin>>ma[i][j];
  int q;
  cin>>q;
  for(int i=0;i<q;i++){
    int a,b;
    cin>>a>>b;
    a--; b--;
    ma[a][b]=1;
    if(floyd(0,0)) cout<<"1\n";
    else{
      cout<<"0\n";
      ma[a][b]=0;
    }
  }
}

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