Submission #391162

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
391162	2021-04-18 06:26:19	keta_tsimakuridze	Furniture (JOI20_furniture)	C++14	100 / 100	2301 ms	36732 KiB

furniture

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#include<bits/stdc++.h>
#define f first
#define int long long
#define s second
using namespace std;
const int N=1005,mod=1e9+7;
int t,d2[N][N],d1[N][N],p[N][N],n,m,cnt[2*N];
queue<pair<int,int> > q;
char c[N][N];
bool ok(int x,int y){
  if(min(x,y)<1 || x>n || y>m) return 0;
  return 1;
}
void dfs1(int x,int y){
  if(d1[x][y] || c[x][y]=='1') return;
  d1[x][y]=1;
  if(ok(x+1,y)) dfs1(x+1,y);
  if(ok(x,y+1)) dfs1(x,y+1);
}
void dfs2(int x,int y){
  if(d2[x][y] || c[x][y]=='1') return;
  d2[x][y]=1; 
  if(ok(x-1,y)) dfs2(x-1,y);
  if(ok(x,y-1)) dfs2(x,y-1);
}
void update1(int x,int y){
  if(ok(x+1,y) && p[x+1][y] && !p[x+1][y-1]) q.push({x+1,y}); 
  if(ok(x,y+1) && p[x][y+1] && !p[x-1][y+1]) q.push({x,y+1}); 
  while(q.size()){
    x=q.front().f;
 
 
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Compilation message (stderr)

furniture.cpp:52:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   52 |  main(){
      |       ^

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