제출 #922290

#제출 시각아이디문제언어결과실행 시간메모리
922290SuPythonyAdvertisement 2 (JOI23_ho_t2)C++17
10 / 100
448 ms29360 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { int n; cin>>n; unordered_set<int> s; while (n--) { int x,e; cin>>x>>e; s.insert(x); } cout<<s.size(); return 0; }
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