Submission #73488620

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define vll vector < ll >
#define vvl vector < vll >
#define vpl vector < pair < ll, ll >>
#define deque dq
#define all(x)(x).begin(), (x).end()
#define pb push_back
#define eb emplace_back
#define pf push_front
#define st stack < ll >
#define stc stack < char >
#define sts stack < string >
#define rep(i, a, b) for (ll i = a; i < b; i++)
#define repe(i, a, b) for (ll i = a; i <= b; i++)
#define sp setprecision

int main() 
{
   ll n,m;cin>>n>>m;vll vm(m+1,0);ll f=0;
   rep(i,0,n){
       ll x;cin>>x;ll f=0;
       vll v(x);
       rep(j,0,x)cin>>v[j];
       rep(k,0,x){
           if (vm[v[k]]==0) {f=1;cout << v[k]<<endl;vm[v[k]]=1;break;}
       }
       if (f==0)cout << 0<<endl;
   }
    
      

}

Submission Info

Compile Error

./Main.cpp: In function 'int main()':
./Main.cpp:21:38: warning: unused variable 'f' [-Wunused-variable]
   21 |    ll n,m;cin>>n>>m;vll vm(m+1,0);ll f=0;
      |                                      ^

Judge Result