Codeforces calculating function solution
Solve in C:
#include<stdio.h>
int main()
{
long long int n,r;
scanf("%lld",&n);
if(n%2==0)
{
r=n/2;
printf("%lld\n",r);
}
else if(n%2==1)
{
r=-((n+1)/2);
printf("%lld\n",r);
}
}
Problem Link https://codeforces.com/contest/2009/problem/C S olution in C++: /// Author : AH_Tonmoy #include < bits / stdc ++. h ...
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