hittogwam

/************************************************************************************************************************************************************

    Write a program to print a histogram of the frequencies of different characters of input.

    NOTE : we only consider alphanumeric characters here

************************************************************************************************************************************************************/

#include<stdio.h>

#include<ctype.h>

int main (int agrc, char * argv[]) {

    int CHARACTERS [37];

    int i,c,k,a,j;

    for (i = 0; i <= 36; i++)

        CHARACTERS[i] = 0;

    while ((c = getchar()) != EOF) {

        if (isdigit(c)) {

            k = c -22;

            CHARACTERS[k]++;

                    }

        else if (isalpha(c)) {

            a = tolower(c);

            k = a - 'a';

            CHARACTERS[k]++;

                     }

                       }

        printf("\nFrequency of occurence\n\n");

            for (i = 60; i >= 1; i--) {

                            printf("%d\t|    ",i);

                    printf(" ");

                    for (j = 0; j <= 36; j++) {

                        printf("  ");

                        if (CHARACTERS[j] >= i) {

                            printf("*");

                                     }

                        else {

                            printf(" ");

                              }
                                       }




                    printf("\n");

                            }

            printf("\t");

                            for (i = 0; i < 120; ++i) {


                            printf("-");

                                          }


            printf("\n\t\ta  b  c  d  e  f  g  h  i  j  k  l  m  n  o  p  q  r  s  t  u  v  w  x  y  z  0  1  2  3  4  5  6  7  8  9\n\n");

            printf("\tCHARACTERS\n");




                   }