FREQUENCY OF EACH

• Problem Description

  
  Write a C program to count frequency of each character in a string using loop.

• CODING ARENA

• #include <stdio.h>

  #include<string.h>

  int main()

  {

    char str[100];

    int c=0;

    int count[26]={0},x;

    scanf("%s",str);

    while(str[c]!='\0')

    {

      if(str[c]>='a'&&str[c]<='z')

      {

        x=str[c]-'a';

        count[x]++;

      }

  c++;

  }

  for(c=0;c<26;c++)

  {

    if(count[c]!=0)

    printf("%c = %d\n",c+'a',count[c]);

  }

  return 0;

  }

• Test Case 1

  
  Input (stdin)

  srmuniversitylearningcentre
  
  

  Expected Output

  a = 1
  
  c = 1
  
  e = 4
  
  g = 1
  
  i = 3
  
  l = 1
  
  m = 1
  
  n = 4
  
  r = 4
  
  s = 2
  
  t = 2
  
  u = 1
  
  v = 1
  
  y = 1

• Test Case 2

  
  Input (stdin)

  srmapplelab
  
  

  Expected Output

  a = 2
  
  b = 1
  
  e = 1
  
  l = 2
  
  m = 1
  
  p = 2
  
  r = 1
  
  s = 1