PE 2 Even Fibonacci numbers

#include<iostream>using namespace std;int Fib(int n){if(n==1)return 1;else if(n==2)return 2;elsereturn Fib(n-1)+Fib(n-2);}int main(void){int i,sum=0;for(i=1;i<100000;i++){if(Fib(i)>4000000)break;else if(Fib(i)%2==0)sum+=Fib(i);}cout<<sum;return 0;}