제출 #973854

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
973854		AtabayRajabli	Monthly railway pass (LMIO18_menesinis_bilietas)	C++17	10 / 100	219 ms	39036 KiB

menesinis_bilietas

#include <bits/stdc++.h>
#define int ll
#define all(v) v.begin(), v.end()
 
// author : a1abay
 
using namespace std;
 
typedef long long ll;
typedef long double ld;
const int sz = 5e5 + 5;
const int inf = 1e9 + 7;
 
int n, m, u, v;
int used[sz];
char c;
vector<int> g[sz];

void dfs(int v)
{
    used[v] = 1;
    for(int i : g[v])
    {
        if(used[i]) continue;
        dfs(i);
    }
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    cin >> n >> m;
    for(int i = 1; i <= m; i++)
    {
        cin >> u >> v >> c;
        g[u].push_back(v);
        g[v].push_back(u);
    }

    dfs(1);

    bool ok = 1;
    for(int i = 1; i <= n; i++) ok &= used[i];

    cout << (ok ? n : 0) << '\n';
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 6
• Subtask 3: 0 / 30
• Subtask 4: 0 / 35
• Subtask 5: 0 / 19