20.41. Write a program that read a line of text and display the frequency of every character.

#include<stdio.h>
#include<conio.h> 

#include<stdlib.h>

#include<string.h>

void main () 
{
void main ()
char *st;
int i, l, a[256];

st=(char *)malloc(sizeof(char)*100);
clrscr ();
printf("Enter any line of text: ");
gets (st);
for(i=0; i<256; i++)

a[i]=0;

l=strlen (st);

for(i=0;i<1;i++)

a[*(st+i)++;

for(i=;i<256;i++)

if(a[i]>0)

printf("%c=%2d\t", i, a[i]);

getch();

}