Fibonaccis.c

//
//  main.c
//  Fibonaccis 0.0.3
//
//  Created by Emanuele Antonio Faraone on 23/09/17.
//  Copyright © 2017 Emanuele Antonio Faraone. All rights reserved.
//
#include <stdio.h>
int main() {
	int prec1 = 1; // first number
    int prec2 = 0; // second number
    int r , i, howmanyt  = 0 ; // r: result, howmanyt : how many times to do the fibonacci
    printf("How many times do I have to do the Fibonacci?\n");
    scanf("%d" ,&howmanyt);
    if (howmanyt < 1){
    	printf("You can`t set 0 or a negative number, please write a new number: ");
    	scanf("%d",&howmanyt);
	}else if (howmanyt > 45){
		printf("For now Fibonaccis doesn`t support more than 45 times, please write a new number: ");
    	scanf("%d",&howmanyt);
	}
    for (i = 0; i <= howmanyt; i++){
        r = prec1 + prec2;
        printf("\n" "%d", r);
        prec1 = prec2 ;
        prec2 = r;
    }
    printf("\n Fibonaccis ran %d times,", howmanyt);
    printf(" the last number of the sequence was %d \n", r);
}