RosettaCodeData/Task/Fibonacci-sequence/C/fibonacci-sequence-2.c

long long int fibb(int n) {
	int fnow = 0, fnext = 1, tempf;
	while(--n>0){
		tempf = fnow + fnext;
		fnow = fnext;
		fnext = tempf;
		}
		return fnext;	
}