#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define str_size 100 //Declare the maximum size of the string
#define chr_no 255 //Maximum number of characters to be allowed

void main()
{
    char str[str_size];
    int ch_fre[chr_no];
    int i = 0, max;
    int ascii;
    
       printf(" Find maximum occurring character in a string : ");
       printf("-------------------------------------------------- ");     
       printf("Input the string : ");
       fgets(str, sizeof str, stdin);

    for(i=0; i<chr_no; i++)  //Set frequency of all characters to 0
    {
        ch_fre[i] = 0;
    }

    /* Read for frequency of each characters */
    i=0;
    while(str[i] != )
    {
        ascii = (int)str[i];
        ch_fre[ascii] += 1;

        i++;
    }

    max = 0;
    for(i=0; i<chr_no; i++)
    {
        if(i!=32)
        {
        if(ch_fre[i] > ch_fre[max])
            max = i;
        }
    }    
    printf("The Highest frequency of character %c appears number of times : %d ", max, ch_fre[max]);
}