提出 #25404891

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ソースコード 拡げる

#include<bits/stdc++.h>
using namespace std;
#define int long long int
#define ld long double
#define MOD 1000000007
#define endl "\n"
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define all(var) (var).begin(), (var).end()
#define sz(x) (int)x.size()
#define MAXX 9000000000000000000

template <typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << "(" << p.first << ", " << p.second << ")"; } 
template <typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { os << '{'; string sep; for (const T &x : v) os << sep << x, sep = ", "; return os << '}'; }
 
template <typename T> void debug_out(string s, T t) { cout << "[" << s << ": " << t << "]\n"; }
template <typename T, typename... U> void debug_out(string s, T t, U... u) { int w = 0, c = 0; while(w < (int)s.size()) { if(s[w] == '(') c++; if(s[w] == ')') c--; if(!c and s[w] == ',') break; w++; } cout << "[" << s.substr(0, w) << ": " << t << "] "; debug_out(s.substr(w+2, (int)s.size()-w-1), u...); } 
 
#define DEBUG
 
#ifdef DEBUG
#define dbg(Z...) debug_out(#Z, Z)
#else
#define dbg(Z...) 
#endif

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n;
    cin >> n;
    map<pair<string, string>, int> ma;

    while(n--)
    {
        string x, y;
        cin >> x >> y;
        if(ma.find(mp(x, y)) != ma.end())
        {
            cout << "Yes";
            return 0;
        }
        ma[(mp(x, y))] = 1;
    }
    cout << "No";
    return 0;
}

提出情報

ジャッジ結果