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P3378 【模板】堆

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Baoshuo Ren 2020-11-02 17:05:29 +08:00 committed by Baoshuo Ren
parent 6069f24be1
commit d2df3fd8d9
Signed by: baoshuo
GPG Key ID: 70F90A673FB1AB68
1 changed files with 25 additions and 0 deletions
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problem/P3378/P3378.cpp Normal file
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#include<bits/stdc++.h>
using namespace std;
int main() {
priority_queue<int, vector<int>, greater<int> > q;
int n;
cin >> n;
while(n--) {
int op;
cin >> op;
if(op == 1) {
int x;
cin >> x;
q.push(x);
}
else if(op == 2) {
cout << q.top() << endl;
}
else if(op == 3) {
q.pop();
}
}
return 0;
}