Count a String

• Problem Description

  
  Write a C program to count total number of alphabets, digits or special characters in a string using loop. How to find total number of alphabets, digits and special characters in a string in C programming.

• CODING ARENA

• #include <stdio.h>

   

  int main()

  {

    char str[100];

    int i, alphabets, digits, special;

    i = alphabets = digits = special = 0;

   

    scanf("%s",str);

   

    while (str[i] != '\0')

    {

    if( (str[i] >= 'a' && str[i] <= 'z') || (str[i] >= 'A' && str[i] <= 'Z') )

    {

    alphabets++; 

    }

    else if (str[i] >= '0' && str[i] <= '9')

    {

    digits++; 

    }    

    else

      special++;

      i++;

  }

      printf("Alphabets=%d", alphabets);  

  printf("\nDigits=%d", digits);  

  printf("\nSpecial characters=%d", special); 

    

    return 0;

  }

• Test Case 1

  
  Input (stdin)

  SRM!University@Learning&Centre@1113
  
  

  Expected Output

  Alphabets=27
  
  Digits=4
  
  Special characters=4

• Test Case 2

  
  Input (stdin)

  SRM1114###!!!@@@
  
  

  Expected Output

  Alphabets=3
  
  Digits=4
  
  Special characters=9