제출 #916503

#제출 시각아이디문제언어결과실행 시간메모리
916503hsuanxs111Advertisement 2 (JOI23_ho_t2)C++14
10 / 100
302 ms29456 KiB
#include<bits/stdc++.h> using namespace std; #define int long long #define endl '\n' signed main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int n; cin>>n; vector<pair<int,int>> v(n); set<int> s; for(int i=0;i<n;i++){ int a, b; cin>>a>>b; v[i]={a,b}; s.insert(a); } cout<<s.size()<<endl; return 0; }
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