/C++/Calculating Function codeforces in c++

Calculating Function codeforces in c++

#include<iostream>
using namespace std;
int main()
{
	long long n, sum;
	cin >> n;
	if (n % 2 == 0)
		sum = (n / 2);
	else
		sum = ((n + 1) / 2) * (-1);
	cout << sum << endl;
	return 0;
}

Source: codeforces.com

Similar codes

0 vote220 views1 answer
C++ cin accept only numbers
C++
1 vote190 views1 answer
File descriptor linux c++
C++
0 vote182 views1 answer
SPEED c++
C++
0 vote187 views1 answer
Why constructor can't be static in c++
C++
1 vote236 views1 answer
Area of a Circle in C++ Programming
C++
0 vote240 views1 answer
C++ typedef template class
C++
0 vote196 views1 answer
Print queue c++
C++
1 vote191 views1 answer
Ray sphere intersection equation
C++
1 vote191 views1 answer
C++ default array value not null
C++
5 votes227 views1 answer
Screen record ios simulator
C++