Submission #1323894

#	Time	Username	Problem	Language	Result	Execution time	Memory
1323894		MuhammadSaram	홀-짝 수열 (IZhO11_oddeven)	C++20	0 / 100	0 ms	332 KiB

oddeven

#include <bits/stdc++.h>

using namespace std;

#define int long long

signed main()
{
	int s=0, e=15e8,n;
	cin>>n;
	while (s+1<e)
	{
		int mid=(s+e)/2;
		if (mid*(mid+1)/2>=n) e=mid;
		else s=mid;
	}
	cout<<n*2-e<<endl;

	return 0;
}

• Subtask 1: 0 / 100