제출 #1114960

#제출 시각아이디문제언어결과실행 시간메모리
1114960epicci23카니발 티켓 (IOI20_tickets)C++17
컴파일 에러
0 ms0 KiB
#include "bits/stdc++.h" #include "tickets.h" #define ll long long #define all(v) v.begin() , v.end() #define sz(a) (ll)a.size() using namespace std; const ll N = 2500; ll find_maximum(int _k, vector<vector<int>> _x){ ll n=sz(_x),m=sz(_x[0]),k=_k; ll ar[n+5][m+5],l[n+5],r[n+5],ans=0; vector<vector<int>> ANS(n,vector<int>(m,-1)); for(ll i=1;i<=n;i++) for(ll j=1;j<=m;j++) ar[i][j] = _x[i-1][j-1]; vector<int> cnt[n+5][2]; for(int i=1;i<=n;i++){ for(int j=1;j<=m;j++) cnt[i][ar[i][j]].push_back(j); } vector<int> hm; for(int i=1;i<=n;i++) hm.push_back(i); for(int i=0;i<k;i++){ int p = n; sort(all(hm),[&](int a,int b){ return sz(cnt[a][1]) > sz(cnt[b][1]); }); for(int j=0;j<n;j++){ int c = hm[j]; if(p>n/2){ if(sz(cnt[c][1])){ ans++; ANS[c-1][cnt[c][1].back()-1]=i; cnt[c][1].pop_back(); } else{ ANS[c-1][cnt[c][0].back()-1]=i; cnt[c][0].pop_back(); } } else{ if(cnt[c][0]){ ANS[c-1][cnt[c][0].back()-1]=i; cnt[c][0].pop_back(); } else{ ANS[c-1][cnt[c][1].back()-1]=i; cnt[c][1].pop_back(); ans--; } } p--; } } allocate_tickets(ANS); return ans; } /*void _(){ ll n,m,k; cin >> n >> m >> k; vector<vector<int>> ar(n,vector<int>(m,-1)); for(ll i=1;i<=n;i++) for(ll j=1;j<=m;j++) cin >> ar[i-1][j-1]; cout << find_maximum(k,ar) << '\n'; } int32_t main(){ cin.tie(0); ios::sync_with_stdio(0); ll tc=1;//cin >> tc; while(tc--) _(); return 0; }*/

컴파일 시 표준 에러 (stderr) 메시지

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:46:18: error: could not convert 'cnt[c][0]' from 'std::vector<int>' to 'bool'
   46 |       if(cnt[c][0]){
      |          ~~~~~~~~^
      |                  |
      |                  std::vector<int>
tickets.cpp:12:19: warning: unused variable 'l' [-Wunused-variable]
   12 |   ll ar[n+5][m+5],l[n+5],r[n+5],ans=0;
      |                   ^
tickets.cpp:12:26: warning: unused variable 'r' [-Wunused-variable]
   12 |   ll ar[n+5][m+5],l[n+5],r[n+5],ans=0;
      |                          ^