Submission #805696

#	Time	Username	Problem	Language	Result	Execution time	Memory
805696		HD1	Monthly railway pass (LMIO18_menesinis_bilietas)	C++14	10 / 100	414 ms	41552 KiB

menesinis_bilietas

// we all are lost trying to be someone.
#include <bits/stdc++.h>
#define fastio ios_base::sync_with_studio(0); cin.tie(0);
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define pb push_back
#define ss second
#define ff first
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> ii;
const int MAX=1e6;
const int inf=1e9;
const int mod=1e9+7;
vector<ll> gfo[MAX];
bool vst[MAX];
void dfs(ll u){
    vst[u]=true;
    for(ll v:gfo[u]){
        if(!vst[v]){
            dfs(v);
        }
    }
}
void solve(){
    ll n, m, u, v;
    char x;
    cin>>n>>m;
    for(ll i=0; i<m; i++){
        cin>>u>>v>>x;
        gfo[u].pb(v);
        gfo[v].pb(u);
    }
    dfs(1);
    bool nice=true;
    for(ll i=1; i<=n; i++){
        if(!vst[i]){
            nice=false;
            break;
        }
    }
    if(nice)cout<<n<<endl;
    else cout<<0<<endl;
    return;
}
int main(){
    solve();
    return 0;
}

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