제출 #303675

#제출 시각아이디문제언어결과실행 시간메모리
303675medmdg카니발 티켓 (IOI20_tickets)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "tickets.h" using namespace std; long long int fin(vector<vector<int> > a,int n,int m,int k){ for(int i=0;i<n;i++){ sort(a[i].begin(),a[i].end()); } long long int ans=0; for(int i=0;i<n;i++){ long long int ff=a[i][(m)/2]; for(int j=0;j<m;j++){ ans+=(long long int)(abs(ff-a[i][j])); } } return ans; } long long int find_maximum(int k, vector<vector<int> > x){ int n=x.size(); int m=x[0].size(); if(m==1){ vector<vector<int> > ans(n); vector<vector<int> > answ(k); for(int i=0;i<n;i++){ ans[i].push_back(0); answ[0].push_back(x[i][0]); } allocate_tickets(ans); return fin(answ,k,n,k); } if(k==1){ vector<vector<int> > a(k); vector<vector<int> > b(n); for(int i=0;i<n;i++) for(int j=0;j<m;j++) b[i][j]=-1; int mi[n]; int ma[n]; for(int i=0;i<n;i++){ mi[i]=0; ma[i]=m-1; } vector<pair<int,int> > mini; vector<pair<int,int> > maxi; for(int i=0;i<n;i++){ pair<int,int > v; v.first=a[i][mi[i]]; v.second=i; mini.push_back(v); v.first=a[i][ma[i]]; v.second=i; maxi.push_back(v); } sort(mini.begin(),mini.end()); sort(maxi.begin(),maxi.end()); for(int i=0;i<n/2;i++){ a[0].push_back(mini[i].first); a[0].push_back(maxi[n-i-1].first); b[mini[i].second]++; b[maxi[i].second]++; } allocate_tickets(b); return fin(a,k,n,k); } }

컴파일 시 표준 에러 (stderr) 메시지

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:58:30: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
   58 |             b[mini[i].second]++;
tickets.cpp:59:30: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
   59 |             b[maxi[i].second]++;
tickets.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type]
   64 | }
      | ^