Submission #1104416

#	Time	Username	Problem	Language	Result	Execution time	Memory
1104416		qrn	Utrka (COCI14_utrka)	C++14	80 / 80	136 ms	18248 KiB

utrka

#include <bits/stdc++.h>
using namespace std;
 
template<class ISqr, class T>
ISqr& operator>>(ISqr& is, vector<T>& v) { for (auto& x : v) is >> x; return is; }
 
#define SPEED                     \
    ios_base::sync_with_stdio(0); \
    cin.tie(NULL);                \
    cout.tie(NULL);
 
template <typename T>
void show(vector<T> &v) {
  for (T i : v) {
    cout << i << ' ';
  }
  cout << endl;
}

 
#define pb push_back
#define ins insert
#define fi first
#define se second
 
#define endl "\n"
#define ALL(x) x.begin(), x.end()
#define sz(x) x.size()
#define int long long
#define _ << " " <<
#define no cout << "No" << endl;
#define yes cout << "Yes" << endl;
#define impos cout << -1 << endl;
 
#define vi vector<int>
#define pii pair<int,int>
#define vpii vector<pii>
 
void solve() {
    map<string,int>cnt, cntt;
    int n;
    cin >> n;
    for(int i = 1; i <= n; i++) {
        string s;
        cin >> s;
        cnt[s]++;
    }
    for(auto it : cnt) cntt[it.fi] = it.se;
    for(int i = 1; i <= n-1; i++) {
        string s;
        cin >> s;
        cnt[s]++;
    }
    for(auto it :cnt){
        if(cntt[it.fi] * 2 != it.se) {
            cout << it.fi << endl;
            return;
        }
    }
}
 
signed main(){
    SPEED;
    int t = 1;
    // cin >> t;
    for(int cs = 1; cs <= t; cs++) {
        solve();
    }
}

• Subtask 1: 80 / 80