oj.uz

Submission #1067692

# Submission time Handle Problem Language Result Execution time Memory
1067692 2024-08-21T01:01:34 Z aaaaaarroz Soccer Stadium (IOI23_soccer) C++17
13.5 / 100
 4500 ms 32368 KB 
#include <bits/stdc++.h>
using namespace std;
bool limites(int N, int i, int j){
	return i>=0&&i<N&&j>=0&&j<N;
}
bool comprobar(int N, vector<vector<int>> F){
	for(int i=0;i<N;i++){
		for(int j=0;j<N;j++){
			if(F[i][j]==1||F[i][j]==0){
				continue;
			}
			priority_queue<tuple<int,int,int>,vector<tuple<int,int,int>>,greater<tuple<int,int,int>>>cola;
			int dx[]={1,0,-1,0};
			int dy[]={0,1,0,-1};
			vector<vector<int>>dist(N,vector<int>(N,INT_MAX));
			dist[i][j]=0;
			cola.push({0,i,j});
			while(!cola.empty()){
				auto[d,x,y]=cola.top();
				cola.pop();
				for(int dir=0;dir<4;dir++){
					int posi=x+dx[dir];
					int posj=y+dy[dir];
					while(true){
						if(!limites(N,posi,posj)||F[posi][posj]==1||F[posi][posj]==0)break;
						if((d+1)<dist[posi][posj]){
							dist[posi][posj]=d+1;
							cola.push({dist[posi][posj],posi,posj});
						}
						posi+=dx[dir];
						posj+=dy[dir];
					}
				}
			}
			for(int x=0;x<N;x++){
				for(int y=0;y<N;y++){
					if(F[x][y]==2&&(dist[x][y]>=3||dist[x][y]==-1)){
						return false;
					}
				}
			}
		}
	}
	return true;
}
int biggest_stadium(int N, vector<vector<int>> F){
	map<tuple<int,int,int>,bool>libre;
	for(int fila=0;fila<N;fila++){
		for(int i=0;i<N;i++){
			for(int j=i;j<N;j++){
				if(i==j){
					libre[{fila,i,j}]=!F[fila][j];
				}
				else{
					libre[{fila,i,j}]=(!F[fila][j])&&libre[{fila,i,j-1}];
				}
			}
		}
	}
	int best=0;
	for(int fila=0;fila<N;fila++){
		for(int columna=0;columna<N;columna++){
			for(int i=0;i<=columna;i++){
				for(int j=columna;j<N;j++){
					if(libre[{fila,i,j}]){
						vector<pair<int,int>>almacen;
						almacen.push_back({i,j});
						int suma=0;
						int fil=fila-1;
						while(fil>=0&&F[fil][columna]!=1){
							int l=columna,r=columna;
							while(l>=almacen.back().first&&r<=almacen.back().second){
								if(libre[{fil,l-1,r}]&&(l-1)>=almacen.back().first){
									l--;
								}
								else if(libre[{fil,l,r+1}]&&(r+1)<=almacen.back().second){
									r++;
								}
								else{
									break;
								}
							}
							almacen.push_back({l,r});
							fil--;
						}
						almacen.push_back({i,j});
						fil=fila+1;
						int fila_extra=1;
						int alm_ant=almacen.size()-1;
						while(fil<N&&F[fil][columna]!=1){
							if(fila_extra<alm_ant){
								int l1=columna,r1=columna;
								l1=almacen[fila_extra].first;
								r1=almacen[fila_extra].second;
								while(l1>=almacen.back().first&&r1<=almacen.back().second){
									if(libre[{fil,l1-1,r1}]&&(l1-1)>=almacen.back().first){
										l1--;
									}
									else if(libre[{fil,l1,r1+1}]&&(r1+1)<=almacen.back().second){
										r1++;
									}
									else{
										break;
									}
								}
								int l=columna,r=columna;
								while(l>=almacen[fila_extra].first&&r<=almacen[fila_extra].second&&l>=almacen.back().first&&r<=almacen.back().second){
									if(libre[{fil,l-1,r}]&&(l-1)>=almacen[fila_extra].first&&(l1-1)>=almacen.back().first){
										l--;
									}
									else if(libre[{fil,l,r+1}]&&(r+1)<=almacen[fila_extra].second&&(r1+1)<=almacen.back().second){
										r++;
									}
									else{
										break;
									}
								}
								if(libre[{fil,l1,r1}]&&l1>=almacen.back().first&&r1<=almacen.back().second){
									almacen.push_back({l1,r1});
								}
								else{
									almacen.push_back({l,r});
								}
								fil++;
								fila_extra++;
							}
							else{
								int l=columna,r=columna;
								while(l>=almacen.back().first&&r<=almacen.back().second){
									if(libre[{fil,l-1,r}]&&(l-1)>=almacen.back().first){
										l--;
									}
									else if(libre[{fil,l,r+1}]&&(r+1)<=almacen.back().second){
										r++;
									}
									else{
										break;
									}
								}
								almacen.push_back({l,r});
								fil++;
							}
						}
						for(auto[x,y]:almacen){
							suma+=(y-x+1);
						}
						suma-=(j-i+1);
						vector<vector<int>>grid=F;
						int cnt=0;
						fil=fila;
						while(fil>=0&&F[fil][columna]!=1){
							for(int y=almacen[cnt].first;y<=almacen[cnt].second;y++){
								grid[fil][y]=2;
							}
							fil--;
							cnt++;
						}
						fil=fila;
						while(fil<N&&F[fil][columna]!=1){
							for(int y=almacen[cnt].first;y<=almacen[cnt].second;y++){
								grid[fil][y]=2;
							}
							fil++;
							cnt++;
						}
						if(comprobar(N,grid)){
							best=max(suma,best);
						}
					}
					else{
						continue;
					}
				}
			}
		}
	}
	return best;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB ok

Subtask #1
0.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 1 ms 348 KB ok
3 Correct 324 ms 460 KB ok
4 Correct 772 ms 344 KB ok
5 Correct 1 ms 600 KB ok
6 Correct 1 ms 348 KB ok
7 Execution timed out 4571 ms 32368 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 1 ms 348 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 1 ms 344 KB ok
6 Correct 1 ms 344 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 1 ms 348 KB ok
11 Correct 1 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok

Subtask #3
5.5 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 1 ms 348 KB ok
6 Correct 1 ms 344 KB ok
7 Correct 1 ms 344 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 1 ms 348 KB ok
12 Correct 1 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 28 ms 348 KB ok
16 Correct 13 ms 456 KB ok
17 Correct 2 ms 348 KB ok
18 Correct 1 ms 348 KB ok
19 Correct 1 ms 348 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Partially correct 1 ms 348 KB partial
23 Correct 1 ms 348 KB ok
24 Partially correct 1 ms 344 KB partial
25 Partially correct 2 ms 348 KB partial
26 Partially correct 4 ms 348 KB partial

Subtask #4
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 324 ms 460 KB ok
5 Correct 772 ms 344 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 1 ms 344 KB ok
9 Correct 1 ms 344 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 1 ms 348 KB ok
14 Correct 1 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 28 ms 348 KB ok
18 Correct 13 ms 456 KB ok
19 Correct 2 ms 348 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 1 ms 348 KB ok
22 Correct 1 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Partially correct 1 ms 348 KB partial
25 Correct 1 ms 348 KB ok
26 Partially correct 1 ms 344 KB partial
27 Partially correct 2 ms 348 KB partial
28 Partially correct 4 ms 348 KB partial
29 Partially correct 3 ms 348 KB partial
30 Execution timed out 4569 ms 1324 KB Time limit exceeded
31 Halted 0 ms 0 KB -

Subtask #5
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 324 ms 460 KB ok
5 Correct 772 ms 344 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 1 ms 344 KB ok
9 Correct 1 ms 344 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 1 ms 348 KB ok
14 Correct 1 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 28 ms 348 KB ok
18 Correct 13 ms 456 KB ok
19 Correct 2 ms 348 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 1 ms 348 KB ok
22 Correct 1 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Partially correct 1 ms 348 KB partial
25 Correct 1 ms 348 KB ok
26 Partially correct 1 ms 344 KB partial
27 Partially correct 2 ms 348 KB partial
28 Partially correct 4 ms 348 KB partial
29 Partially correct 3 ms 348 KB partial
30 Execution timed out 4569 ms 1324 KB Time limit exceeded
31 Halted 0 ms 0 KB -

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 324 ms 460 KB ok
5 Correct 772 ms 344 KB ok
6 Correct 1 ms 600 KB ok
7 Correct 1 ms 348 KB ok
8 Execution timed out 4571 ms 32368 KB Time limit exceeded
9 Halted 0 ms 0 KB -