1-2+3-4+5......
Input:
#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
unsigned ll n;
cin>>n;
if(n%2==0)
{
cout<<-n/2<<endl;
}
else
{
cout<<n/2+1<<endl;
}
}
C++ Class
> Abstraction >E ncapsulation /Access Modifiers >Inheritance #include <iostream> using namespace std; class vehicle { public: vehicle() { cout<<"this is a constructor of vehicle"<<endl; } ~vehicle() { cout<<"this is a deconstructor of vehicle"<<endl; } }; class fourwheeler { public: fourwheeler() { cout<<"this is the constructor of fourwheeler"<<endl; } fourwheeler(string x) { cout<<"This is another constructor which has "<<x<<" with it"<<endl; } ~fourwheeler() { cout<<"this is deconstructor of fourwheeler"<<endl; ...
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