Submission #1090596

#	Time	Username	Problem	Language	Result	Execution time	Memory
1090596		Lyestria	Pilot (NOI19_pilot)	C++14	5 / 100	1 ms	348 KiB

pilot

#include<bits/stdc++.h>
using namespace std;
int main() {
  long long n;
  cin >> n;
  cout << n*(n+1)/2;
}

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• Subtask 5: 5 / 5
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