cs50 sandbox for-loop issue

Question

I want to make a program that, when I give it a number, it counts from it downwards.

Here is my code:

#include <stdio.h>
#include <cs50.h>
 
int main(void) {
    int i = get_char("Choose a number.\n");
    for (int a = 0; a < i; a++) {
         printf("a\n");
    }
}

Answer 1

A few things:

1. You're printf ing "a", not the value of the variable a. Try:

    print("%d\n", a);

2. You're not counting down from i to 1; you're counting up from 0 to i-1 . You want something more like:

    for (int a = i; a >= 1; a--)

   (And if you want to count down to 0, obviously, change that 1 to 0.)

3. You're reading a character, but you want to read an integer:

    int i = get_int("Choose a number.\n");

4. And you're not returning anything from a function that is supposed to return an int .

    return 0; }