#include <bits/stdc++.h>
//#define DEBUG 1106
#define int long long
#define ll long long
#define ld long double
#define pb push_back
#define p_q priority_queue
#define m_p make_pair
#define pii pair<int,int>
#define endl '\n'
#define INIT ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define FOR(i,a,b) for(int i = a; i <= b; i++)
#define forn(i,n) for (int i = 0; i < n; i++)
#define forn1(i,n) for (int i = 1; i <= n; i++)
#define all(x) x.begin(),x.end()
#define ft first
#define sd second
#define lowbit(x) (x&(-x))
#define chmax(x,y) x=max(x,y)
#define chmin(x,y) x=min(x,y)
#ifdef DEBUG
#define debug(x) cout << #x << ": " << x << endl;
#else
#define debug(x) 1106;
#endif
using namespace std;
const int N = 2e5+5;
const int inf = 1e9;
const int INF = 1e18;
const int MOD = 1e9+7;
int a[N];
bool vis[N];
vector<int> G[N];
signed main() {
INIT
#ifdef DEBUG
freopen("input.txt", "r", stdin);
#endif
///////////
int n, m;
cin >> n >> m;
int x, y;
char ch;
while(m--) {
cin >> x >> y >> ch;
G[x].pb(y);
G[y].pb(x);
}
queue<int> Q;
Q.push(1);
int c = 1;
vis[1]=1;
while(!Q.empty()) {
int u = Q.front();
Q.pop();
for(auto v: G[u]) {
if(!vis[v]) {
vis[v]=1;
Q.push(v);
c++;
}
}
}
if(c==n) cout << n;
else cout << 0;
}
}
Compilation message
menesinis_bilietas.cpp:71:1: error: expected declaration before '}' token
71 | }
| ^
