#include int fibo(int n){ int result; int a = 0; int b = 1; int i = 1; while( i < n ) { result = a + b; a = b; b = result; i++; } return result; } int main(void) { int counter = 1000000; int counter2 = counter; int level = 40; int fib ; while(counter--) { fib = fibo(level); } printf("%i times fib %d \n",counter2 , level); }