fibonachi :P -- java.java

import java.math.BigInteger;
public class hahaha 
{
	public static void main(String[] args) 
	{
		BigInteger a = new BigInteger("0");
		BigInteger b = new BigInteger("1");
		float number = 1000000;
		
		while(number-- > 1)
		{
			BigInteger temp = b;
			b = b.add(a);
			a = temp;
		}
		/* System.out.println(b.toString()); */
	}

}

fibonachi python!.py

#!/usr/bin/env python

if __name__=="__main__":
	a, b = 0, 1
	for i in range(1000000):
		a, b = b, a + b
	#print a

fibs.cpp

#include <iostream>
#include <gmpxx.h>
using namespace std;

int main()
{
	mpz_class a = 0;
	mpz_class b = 1;
	float number = 1000000;

	while(number > 1)
	{
		number--;
		mpz_class temp = b;
		b += a;
		a = temp;
	}
        /* cout << endl << b <<endl; */
        return 0;
}

c++
time ./a.out

real 0m45.657s
user 0m44.711s
sys 0m0.056s