Submission #1066438

#TimeUsernameProblemLanguageResultExecution timeMemory
1066438aaaaaarrozSoccer Stadium (IOI23_soccer)C++17
0 / 100
4600 ms1193084 KiB
#include <bits/stdc++.h> using namespace std; 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=0;j<N;i++){ 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--; } else if(libre[{fil,l,r+1}]){ 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){ int l1=columna,r1=columna; if(fila_extra<alm_ant){ l1=almacen[alm_ant].first; r1=almacen[alm_ant].second; while(l1>almacen.back().first&&r1<almacen.back().second){ if(libre[{fil,l1-1,r1}]){ l1--; } else if(libre[{fil,l1,r1+1}]){ r1++; } else{ break; } } int l=columna,r=columna; while(l>almacen[fila_extra].first&&r<almacen[fila_extra].second){ if(libre[{fil,l-1,r}]){ l--; } else if(libre[{fil,l,r+1}]){ r++; } else{ break; } } if(libre[{fil,l1,r1}]){ almacen.push_back({l1,r1}); } else{ almacen.push_back({l,r}); } } int l=columna,r=columna; while(l>almacen.back().first&&r<almacen.back().second){ if(libre[{fil,l-1,r}]){ l--; } else if(libre[{fil,l,r+1}]){ r++; } else{ break; } } if(libre[{fil,l1,r1}]){ almacen.push_back({l1,r1}); } else{ almacen.push_back({l,r}); } fil++; } for(auto[x,y]:almacen){ suma+=(y-x+1); } suma-=(j-i+1); best=max(suma,best); fila_extra++; } else{ continue; } } } } } return best; }
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