#CodeChallenge : dare the un-dared

Just occurred to me why not put this concept to reality, after all learning is at it's peak when done through fun.
how best are your codes?
and your coding language is what? 
all you have to do is challenge a friend to this questions. 
All got you got to do is write your code in any language of your choice then challenge a friend to it.
#CodeChallenge 


imagine

#include <iostream>
using namespace std;

int main(){
int a;
int b;

cout<<"b= name of friend you challenge"<<endl;
cin>>b
if(a=your codes in any language){
cout<<"a=yours codes"<<endl;}
}

sounds simple right just wait until you are challenged there you will see codes of codes. 
is the #CodeChallenge dare the un-dared