For: Fibonacci iterativo

#include <stdio.h>

int main(){
	
	int num, i, x=0, y=1, z=1;
	
	printf("Ingresa el numero: ");
	scanf("%d",&num);
	
	printf("1 ");
	
	for(i=1; i<num; i++){
		z = x + y;
		x = y;
		y = z;
		printf("%d ",z);
	}
	
	
	
	system("pause");
	return 0;
}