제출 #672661

#제출 시각아이디문제언어결과실행 시간메모리
672661haxormanTeams (CEOI11_tea)C++14
0 / 100
251 ms20876 KiB
#include <bits/stdc++.h> using namespace std; const int mxN = 1e6 + 7; pair<int,int> arr[mxN]; int32_t main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n; cin >> n; for (int i = 0; i < n; ++i) { cin >> arr[i].first; arr[i].second = i + 1; } sort(arr, arr + n); vector<vector<int>> ans = {{}}; for (int i = 0; i < n; ++i) { ans.back().push_back(arr[i].second); if (ans.back().size() == arr[i].first) { ans.push_back({}); } } /* for (auto vec : ans) { for (auto x : vec) { cout << x << ' '; } cout << "\n"; } */ if (!ans.back().size()) { ans.pop_back(); } else if (ans.back().size() < arr[n - 1].first) { for (auto& vec : ans) { if (vec.size() + ans.back().size()) { for (auto x : ans.back()) { vec.push_back(x); } break; } } ans.pop_back(); } cout << ans.size() << "\n"; for (auto vec : ans) { cout << vec.size() << ' '; for (auto x : vec) { cout << x << ' '; } cout << "\n"; } }

컴파일 시 표준 에러 (stderr) 메시지

tea.cpp: In function 'int32_t main()':
tea.cpp:23:31: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   23 |         if (ans.back().size() == arr[i].first) {
      |             ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
tea.cpp:40:32: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   40 |     else if (ans.back().size() < arr[n - 1].first) {
      |              ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
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