/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 vote251 views1 answer
Mkdir boost filesystem
C++
0 vote233 views1 answer
Recursive power in c++
C++
4 votes236 views1 answer
Get index of value c++
C++
0 vote283 views1 answer
C++ allocate and free dynamic 2d array
C++
0 vote240 views1 answer
Std::gcd
C++
0 vote260 views1 answer
SFML texture from file max size
C++
0 vote248 views3 answers
Dynamic memory c++
C++
1 vote278 views1 answer
Stack implementation using linked list in cpp
C++
0 vote237 views2 answers
Union of two arrays
C++
0 vote235 views1 answer
What algorithm does bitcoin use
C++