제출 #839891

#제출 시각아이디문제언어결과실행 시간메모리
839891abdzag축구 경기장 (IOI23_soccer)C++17
1.50 / 100
240 ms31632 KiB
#include "soccer.h" #include <bits/stdc++.h> typedef long long ll; const long long inf = 2e9; using namespace std; int biggest_stadium(int N, std::vector<std::vector<int>> F) { ll ans =0; bool bad=0; vector<pair<ll,ll>> corners={{0,0}, {0,N-1}, {N-1,0}, {N-1,N-1}}; for(int i=0; i<N; i++){ for(int j=0; j<N; j++){ if(F[i][j] and find(corners.begin(),corners.end(),make_pair((ll)i,(ll)j))==corners.end()){ bad=1; } ans+=!F[i][j]; } } if(N==2 and ans==2 and ((F[0][1]==1 and F[1][0]==1) or (F[0][0]==1 and F[1][1]==1)))bad=1; if(bad)return -1; return ans; }
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