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beginner's input/output problem.. [message #754828]

Fri, 04 November 2011 13:49

platon123

Messages: 3
Registered: November 2011

Junior Member

Hey,
I made a very simple program:

#include <stdio.h>

int main()
{

int a;

printf("Enter size of input:\n");
scanf("%d",&a);
if (!(a>0))
{
printf("Invalid size");
return 0;
}
printf("%d",a);
}

Now, when I run it, the console window is empty.
After I enter a number (for instance, 5) and press Enter, it shows:

5
Enter size of input:
5

So it works, but why doesn't the text show up when it's supposed to? how can I fix it?
Thanks in advance!

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Re: beginner's input/output problem.. [message #754911 is a reply to message #754828]

Fri, 04 November 2011 21:36

Archangel

Messages: 2
Registered: November 2011

Junior Member

I have same problem. ı wrote this code as at the down...

#include <stdio.h>

int main(void) {

int number1;
int number2;
int sum;

printf("Enter the first number\n");
scanf("%d",&number1);

printf("Enter the second number\n");
scanf("%d",&number2);

sum=number1+number2;

printf("%d\n",sum);

return 0;
}

5
6
Enter the first number
Enter the second number
11

firstly program wanted numbers and after that ıt wrote the printf function...
ıs there any one who can help???

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