제출 #975701

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
975701	2024-05-05 18:15:46	Error404	Love Polygon (BOI18_polygon)	C++17	0 / 100	243 ms	26248 KiB

polygon

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define f first
#define s second
#define pi pair<int,int>
 
const int MAX = 2e5; 
    
    
int n;
map<string,int>m;
vector<int>g[MAX];
int love[MAX];
int indegree[MAX];
int visited[MAX];
 map<int,string>name;
int main(){
    int n;
    cin>> n;
    string  from, to;
    int k = 1;
    if(n%2){
        cout << -1 << endl;
        return 0;
    }
    int a,b;
    for(int i = 0; i < n; i++){
        cin >> from >> to;
 
 
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