Submission #742242

#	Time	Username	Problem	Language	Result	Execution time	Memory
742242		thang	Utrka (COCI14_utrka)	C++14	80 / 80	192 ms	17360 KiB

utrka

#include<bits/stdc++.h>
using namespace std;
int n;
string x[100005],y[100005];
map<string ,int> dem;
int main()
{
    cin>>n;
    for(int i=1;i<=n;i++) cin>>x[i],dem[x[i]]++;
    for(int i=1;i<=n-1;i++) cin>>y[i],dem[y[i]]++;
    for(int i=1;i<=n;i++)
    if(dem[x[i]]%2!=0) {cout<<x[i];break;}
}

• Subtask 1: 80 / 80