Submission #742241

#	Time	Username	Problem	Language	Result	Execution time	Memory
742241		thang	Utrka (COCI14_utrka)	C++14	80 / 80	151 ms	18956 KiB

utrka

#include<bits/stdc++.h>
using namespace std;
int n;
string a[200005];
map<string,int> d;
int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    //freopen("giainhat.inp","r",stdin);freopen("giainhat.out","w",stdout);
    cin>>n;
    for(int i=1;i<=2*n-1;i++)
    {
        cin>>a[i];
        d[a[i]]++;
    }
    for(int i=1;i<=n;i++)
    if(d[a[i]]%2==1) {
        cout<<a[i];
        return 0;
    }
}

• Subtask 1: 80 / 80