제출 #1051621

#제출 시각아이디문제언어결과실행 시간메모리
1051621Gromp15카니발 티켓 (IOI20_tickets)C++17
0 / 100
0 ms348 KiB
#include <bits/stdc++.h> #define ll long long #define all(x) x.begin(), x.end() #include "tickets.h" using namespace std; const ll INF = 1e18; long long find_maximum(int k, std::vector<std::vector<int>> a) { int n = a.size(); int m = a[0].size(); if (m == 1) { vector<int> x(n); for (int i = 0; i < n; i++) x[i] = a[i][0]; sort(all(x)); ll ans = 0; for (int i = 0; i < n / 2; i++) ans -= x[i]; for (int i = n / 2; i < n; i++) ans += x[i]; return ans; } }

컴파일 시 표준 에러 (stderr) 메시지

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:21:1: warning: control reaches end of non-void function [-Wreturn-type]
   21 | }
      | ^
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