제출 #926596

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
926596		haxorman	Untitled (POI11_imp)	C++14	72 / 100	805 ms	65536 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define int long long

const int mxN = 3007;

vector<int> g[mxN];

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    
    int n, m;
    cin >> n >> m;

    for (int i = 0; i < m; ++i) {
        int u, v;
        cin >> u >> v;

        g[u].push_back(v);
        g[v].push_back(u);
    }
    
    set<int> left;
    for (int u = 1; u <= n; ++u) {
        left.insert(u);
    }

    for (int u = 1; u <= n; ++u) {
        if (!left.count(u)) {
            continue;
        }

        set<int> check = {u};
        for (auto v : g[u]) {
            check.insert(v);
        }

        for (int v = 1; v <= n; ++v) {
            if (!check.count(v) && left.count(v)) {
                left.erase(u);
                left.erase(v);
                break;
            }
        }
    }
    
    assert(left.size() >= n / 3);
    auto it = left.begin();
    for (int i = 0; i < n / 3; ++i) {
        cout << *it << ' ';
        ++it;
    }
    cout << "\n";
}

컴파일 시 표준 에러 (stderr) 메시지

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from imp.cpp:1:
imp.cpp: In function 'int32_t main()':
imp.cpp:48:24: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   48 |     assert(left.size() >= n / 3);
      |            ~~~~~~~~~~~~^~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 9 / 9
• Subtask 8: 9 / 9
• Subtask 9: 0 / 9
• Subtask 10: 0 / 9
• Subtask 11: 0 / 10