제출 #980818

#제출 시각아이디문제언어결과실행 시간메모리
980818Unforgettablepl철인 이종 경기 (APIO18_duathlon)C++17
0 / 100
1036 ms604 KiB
#include <bits/stdc++.h>
using namespace std;

#define int long long

int adj[11][11];
set<tuple<int,int,int>> ans;

void calc(const vector<int>& path){
    if(path.size()<3)return;
    for(int i=1;i<path.size();i++){
        if(!adj[path[i]][path[i-1]])return;
        for(int k=1;k<i;k++)ans.insert({path[0],path[k],path[i]});
    }
}

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m;
    cin >> n >> m;
    for(int i=1;i<=m;i++){
        int a,b;cin>>a>>b;
        adj[a][b]=adj[b][a]=true;
    }
    vector<int> path(n);iota(path.begin(), path.end(),1);
    do {
        calc(path);
    } while(next_permutation(path.begin(), path.end()));
    cout << ans.size() << '\n';
}

컴파일 시 표준 에러 (stderr) 메시지

count_triplets.cpp: In function 'void calc(const std::vector<long long int>&)':
count_triplets.cpp:11:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i=1;i<path.size();i++){
      |                 ~^~~~~~~~~~~~
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