oj.uz

Submission #1059798

# Submission time Handle Problem Language Result Execution time Memory
1059798 2024-08-15T08:15:46 Z epicci23 Soccer Stadium (IOI23_soccer) C++17
1.5 / 100
 209 ms 48424 KB 
#include "bits/stdc++.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
#include "soccer.h"


int dp[8][8][8][8][8][8];
vector<vector<int>> ar;
int ans=0,n;
const int INF = 1e7;

int calc(int a,int b,int c,int d,int e,int f){
  if(dp[a][b][c][d][e][f]!=-1) return dp[a][b][c][d][e][f];
  int cevv=0;
  for(int i=b;i<=c;i++) if(ar[a][i]) return dp[a][b][c][d][e][f]=-INF;
  for(int i=e;i<=f;i++) if(ar[d][i]) return dp[a][b][c][d][e][f]=-INF;
  if(a>0){	
   for(int i=0;i<n;i++){
  	 for(int j=i;j<n;j++){
  	   if(ar[a-1][j]) break;
  	   if(b<=i && j<=c && ((i<=e && f<=j) || (e<=i && j<=f)) ) cevv=max(cevv,calc(a-1,i,j,d,e,f)+j-i+1);  
  	 }
   }
  }
  if(d+1<n){
  	for(int i=0;i<n;i++){
  	 for(int j=i;j<n;j++){
  	   if(ar[d+1][j]) break;
  	   if(e<=i && j<=f && ((i<=b && c<=j) || (b<=i && j<=c)) ) cevv=max(cevv,calc(a,b,c,d+1,i,j)+j-i+1);  
  	 }
   }
  }
  return dp[a][b][c][d][e][f]=cevv;
}

int biggest_stadium(int N, vector<vector<int>> xd){
  memset(dp,-1,sizeof(dp));
  ar=xd;n=N;
  /*if(n<=7){
   for(int i=0;i<n;i++){
  	for(int j=0;j<n;j++){
  	  for(int k=j;k<n;k++){
        if(ar[i][k]) break;
        ans=max(ans,calc(i,j,k,i,j,k)+k-j+1);
  	  }
  	}
   }
   return ans;
  }*/
  
  array<int,2> row[n],col[n];
  int ilk_row=-1,son_row=-1,ilk_col=-1,son_col=-1;
  for(int i=0;i<n;i++){
  	array<int,2> lol={-1,-1};
  	for(int j=0;j<n;j++){
  	  if(!ar[i][j]){
        if(lol[0]==-1) lol={j,j};
        else if(lol[1]==j-1) lol[1]++;
        else return -1;
  	  }
  	}
  	row[i]=lol;
    if(ilk_row==-1 && row[i][0]!=-1) ilk_row=i;
    if(row[i][0]!=-1) son_row=i;
  }

  for(int i=ilk_row+1;i<=son_row;i++){
  	bool ok=0;
  	if(row[i-1][0]<=row[i][0] && row[i][1]<=row[i-1][1]) ok=1;
  	if(row[i][0]<=row[i-1][0] && row[i-1][1]<=row[i][1]) ok=1;
  	if(!ok) return -1;
  }

  for(int j=0;j<n;j++){
  	array<int,2> lol={-1,-1};
  	for(int i=0;i<n;i++){
  	  if(!ar[i][j]){
        if(lol[0]==-1) lol={i,i};
        else if(lol[1]==i-1) lol[1]++;
        else return -1;
  	  }
  	}
  	col[j]=lol;
    if(ilk_col==-1 && col[j][0]!=-1) ilk_col=j;
    if(col[j][0]!=-1) son_col=j;
  }

  for(int i=ilk_col+1;i<=son_col;i++){
  	bool ok=0;
  	if(col[i-1][0]<=col[i][0] && col[i][1]<=col[i-1][1]) ok=1;
  	if(col[i][0]<=col[i-1][0] && col[i-1][1]<=col[i][1]) ok=1;
  	if(!ok) return -1;
  }
  
  int cnt=0;
  for(int i=0;i<n;i++)
  	for(int j=0;j<n;j++) cnt+=(ar[i][j]==0);

  return cnt;
}


/*void _(){
  int nn; cin >> nn;
  vector<vector<int>> v(nn,vector<int>(nn));
  for(int i=0;i<nn;i++){
  	for(int j=0;j<nn;j++){
     cin >> v[i][j];
  	}
  }

  cout << biggest_stadium(nn,v) << '\n';

}

int32_t main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tc=1;//cin >> tc;
  while(tc--) _();
  return 0;
}*/

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 1372 KB partial

Subtask #1
1.5 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB ok
2 Correct 1 ms 1372 KB ok
3 Correct 1 ms 1372 KB ok
4 Correct 0 ms 1372 KB ok
5 Correct 1 ms 1372 KB ok
6 Partially correct 0 ms 1372 KB partial
7 Partially correct 1 ms 1372 KB partial
8 Partially correct 13 ms 4260 KB partial
9 Partially correct 209 ms 48424 KB partial

Subtask #2
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1372 KB ok
2 Correct 1 ms 1372 KB ok
3 Partially correct 1 ms 1372 KB partial
4 Partially correct 1 ms 1372 KB partial
5 Partially correct 1 ms 1372 KB partial
6 Incorrect 0 ms 1372 KB wrong
7 Halted 0 ms 0 KB -

Subtask #3
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 1372 KB partial
2 Correct 1 ms 1372 KB ok
3 Correct 1 ms 1372 KB ok
4 Partially correct 1 ms 1372 KB partial
5 Partially correct 1 ms 1372 KB partial
6 Partially correct 1 ms 1372 KB partial
7 Incorrect 0 ms 1372 KB wrong
8 Halted 0 ms 0 KB -

Subtask #4
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 1372 KB partial
2 Correct 1 ms 1372 KB ok
3 Correct 1 ms 1372 KB ok
4 Correct 1 ms 1372 KB ok
5 Correct 0 ms 1372 KB ok
6 Partially correct 1 ms 1372 KB partial
7 Partially correct 1 ms 1372 KB partial
8 Partially correct 1 ms 1372 KB partial
9 Incorrect 0 ms 1372 KB wrong
10 Halted 0 ms 0 KB -

Subtask #5
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 1372 KB partial
2 Correct 1 ms 1372 KB ok
3 Correct 1 ms 1372 KB ok
4 Correct 1 ms 1372 KB ok
5 Correct 0 ms 1372 KB ok
6 Partially correct 1 ms 1372 KB partial
7 Partially correct 1 ms 1372 KB partial
8 Partially correct 1 ms 1372 KB partial
9 Incorrect 0 ms 1372 KB wrong
10 Halted 0 ms 0 KB -

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 1372 KB partial
2 Correct 1 ms 1372 KB ok
3 Correct 1 ms 1372 KB ok
4 Correct 1 ms 1372 KB ok
5 Correct 0 ms 1372 KB ok
6 Correct 1 ms 1372 KB ok
7 Partially correct 0 ms 1372 KB partial
8 Partially correct 1 ms 1372 KB partial
9 Partially correct 13 ms 4260 KB partial
10 Partially correct 209 ms 48424 KB partial
11 Partially correct 1 ms 1372 KB partial
12 Partially correct 1 ms 1372 KB partial
13 Partially correct 1 ms 1372 KB partial
14 Incorrect 0 ms 1372 KB wrong
15 Halted 0 ms 0 KB -