huffman.c

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

void calc_freq(char* str){
  int freq[255], i, j, temp;
  for(i=0;i<255;i++)
    freq[i] = 0;
  
  for(i=0;str[i]!='\0';str++){
    int ascii = (int)str[i];
    freq[ascii]++;
  }
  
  printf("\nFrequency of the characters:\n");
  for(i=0;i<255;i++){
    if (freq[i]){
      char c = (char)i;
      if(c==' ')continue;
      printf("%c - %d\n", c, freq[i]);
    }
  }
}

int main() {
  char stry[100];
  int i;
  puts("Enter a string: ");
  gets(stry);
  printf("Original String: ");
  puts(stry);
  calc_freq(stry);
  getchar();
  return 0;
}