This is my attempt at a c program which solves the collatz conjecture i am really new to c and would like to know why my code is not working
#include <stdio.h>
int main()
{
int num = 0;
int count = 0;
printf("Enter your number: ");
scanf("%d", &num);
while ("%d" != 2,num);{
if (num %2 == 0)
{
num = num / 2;
printf("%d", num);
count = count + 1;
}
else
{
num = num * 3 + 1;
printf("%d", num);
count = count + 1;
}
}
if (num == 1);
{
printf("%d", count);
}
return 0;
}
>Solution :
Your syntax is wrong.
The condition in while should be a boolean condition, and num variable should be different than 1.
I edit also printfs to be more suggestive and add a new line to them. I excluded the last if condition because it was redundant. When the code finish while loop the num variable will be 1.
I think what you are trying to do is this:
#include <stdio.h>
int main()
{
int num = 0;
int count = 0;
printf("Enter your number: ");
scanf("%d", &num);
while (num != 1)
{
if (num %2 == 0)
{
num = num / 2;
printf("num = %d\n", num);
count = count + 1;
}
else
{
num = num * 3 + 1;
printf("num = %d\n", num);
count = count + 1;
}
}
printf("count = %d", count);
return 0;
}