URGENT help needed in solving c++ qn

[bliya123]

In this lab we look at molecular formulae written out as follows:
H

[WaltP]

Start by doing 1a which is very basic and quite simple. Then start adding the code for 1b. When you get stuck actually coding, we can help you overcome those problems. But you have to code something for us to help with.

[bliya123]

yea but cld you provide some tips/pointers on how i even go abt startin it?from where do i start?

(sorry,im a beginner)

[bliya123]

ok i got it..can someone help me check this code?

#include<stdio.h>

int main()
{
	char a[20];
	int count=0;
	int b=0;

	for(count=0;count<20;count++)
	{
		printf("\nPlease enter a character or '.' to stop:");
		scanf("%c", &a[count]);
		getchar();

		if (a[count]=='.')
		{
			break;
		}
	}
	while(count==20)
	{
		a[count]='.';
		break;
	}

	for(b=0;b<=count;b++)
	{
		printf("%c", a[b]);
	}


	return 0;
}