Check if count of Alphabets and count of Numbers are equal in the given String

Given the alphanumeric string str, the task is to check if the count of Alphabets and count of Numbers are equal or not. 

Examples:

Input: str = “GeeKs01234” 
Output: Yes 
Explanation:
The count of alphabets and numbers are equal to 5. 

Input: str = “Gfg01234” 
Output: No 
Explanation:
The count of the alphabet is 3, whereas the count of numbers is 5.  

Approach: The idea is to use the ASCII values of the characters to distinguish between a number and an alphabet. After distinguishing the characters, two counters are maintained to count the number of alphabets and numbers respectively. Finally, both the counters are checked for equality. 
The ASCII ranges of the characters are as follows:  

• Lowercase characters: 97 to 122
• Uppercase characters: 65 to 90
• Digits: 48 to 57

Below is the implementation of the above approach: 

C++

// C++ program to check if the count of
// alphabets and numbers in a string
// are equal or not.

#include <iostream>
using namespace std;

// Function to count the
// number of alphabets
int countOfLetters(string str)
{
    // Counter to store the number
    // of alphabets in the string
    int letter = 0;

    // Every character in the string
    // is iterated
    for (int i = 0; i < str.length(); i++) {

        // To check if the character is
        // an alphabet or not
        if ((str[i] >= 'A' && str[i] <= 'Z')
            || (str[i] >= 'a' && str[i] <= 'z'))
            letter++;
    }

    return letter;
}

// Function to count the number of numbers
int countOfNumbers(string str)
{
    // Counter to store the number
    // of alphabets in the string
    int number = 0;

    // Every character in the string is iterated
    for (int i = 0; i < str.length(); i++) {

        // To check if the character is
        // a digit or not
        if (str[i] >= '0' && str[i] <= '9')
            number++;
    }

    return number;
}

// Function to check if the
// count of alphabets is equal to
// the count of numbers or not
void check(string str)
{
    if (countOfLetters(str)
        == countOfNumbers(str))
        cout << "Yes\n";
    else
        cout << "No\n";
}

// Driver code
int main()
{
    string str = "GeeKs01324";
    check(str);
    return 0;
}

Java

// Java program to check if the count of
// alphabets and numbers in a String
// are equal or not.
public class GFG
{

// Function to count the
// number of alphabets
static int countOfLetters(String str)
{
    // Counter to store the number
    // of alphabets in the String
    int letter = 0;

    // Every character in the String
    // is iterated
    for (int i = 0; i < str.length(); i++)
    {

        // To check if the character is
        // an alphabet or not
        if ((str.charAt(i) >= 'A' && str.charAt(i) <= 'Z')
            || (str.charAt(i) >= 'a' && str.charAt(i) <= 'z'))
            letter++;
    }

    return letter;
}

// Function to count the number of numbers
static int countOfNumbers(String str)
{
    // Counter to store the number
    // of alphabets in the String
    int number = 0;

    // Every character in the String is iterated
    for (int i = 0; i < str.length(); i++)
    {

        // To check if the character is
        // a digit or not
        if (str.charAt(i) >= '0' && str.charAt(i) <= '9')
            number++;
    }

    return number;
}

// Function to check if the
// count of alphabets is equal to
// the count of numbers or not
static void check(String str)
{
    if (countOfLetters(str)
        == countOfNumbers(str))
        System.out.print("Yes\n");
    else
        System.out.print("No\n");
}

// Driver code
public static void main(String[] args)
{
    String str = "GeeKs01324";
    check(str);
}
}

// This code is contributed by 29AjayKumar

Python3

# Python3 program to check if the count of
# alphabets and numbers in a string
# are equal or not.

# Function to count the
# number of alphabets
def countOfLetters(string ) :

    # Counter to store the number
    # of alphabets in the string
    letter = 0;

    # Every character in the string
    # is iterated
    for i in range(len(string)) :

        # To check if the character is
        # an alphabet or not
        if ((string[i] >= 'A' and string[i] <= 'Z')
            or (string[i] >= 'a' and string[i] <= 'z')) :
            letter += 1;

    return letter;

# Function to count the number of numbers
def countOfNumbers(string ) :

    # Counter to store the number
    # of alphabets in the string
    number = 0;

    # Every character in the string is iterated
    for i in range(len(string)) :

        # To check if the character is
        # a digit or not
        if (string[i] >= '0' and string[i] <= '9') :
            number += 1;

    return number;

# Function to check if the
# count of alphabets is equal to
# the count of numbers or not
def check(string) :

    if (countOfLetters(string) == countOfNumbers(string)) :
        print("Yes");
    else :
        print("No");

# Driver code
if __name__ == "__main__" :

    string = "GeeKs01324";
    check(string);

# This code is contributed by AnkitRai01

C#

// C# program to check if the count of
// alphabets and numbers in a String
// are equal or not.
using System;

class GFG
{

// Function to count the
// number of alphabets
static int countOfLetters(String str)
{
    // Counter to store the number
    // of alphabets in the String
    int letter = 0;

    // Every character in the String
    // is iterated
    for (int i = 0; i < str.Length; i++)
    {

        // To check if the character is
        // an alphabet or not
        if ((str[i] >= 'A' && str[i] <= 'Z')
            || (str[i] >= 'a' && str[i] <= 'z'))
            letter++;
    }

    return letter;
}

// Function to count the number of numbers
static int countOfNumbers(String str)
{
    // Counter to store the number
    // of alphabets in the String
    int number = 0;

    // Every character in the String is iterated
    for (int i = 0; i < str.Length; i++)
    {

        // To check if the character is
        // a digit or not
        if (str[i] >= '0' && str[i] <= '9')
            number++;
    }

    return number;
}

// Function to check if the
// count of alphabets is equal to
// the count of numbers or not
static void check(String str)
{
    if (countOfLetters(str)
        == countOfNumbers(str))
        Console.Write("Yes\n");
    else
        Console.Write("No\n");
}

// Driver code
public static void Main(String[] args)
{
    String str = "GeeKs01324";
    check(str);
}
}

// This code is contributed by 29AjayKumar

Javascript

<script>
// Javascript program to check if the count of
// alphabets and numbers in a string
// are equal or not.


// Function to count the
// number of alphabets
function countOfLetters( str)
{
    // Counter to store the number
    // of alphabets in the string
    var letter = 0;

    // Every character in the string
    // is iterated
    for (var i = 0; i < str.length; i++) {

        // To check if the character is
        // an alphabet or not
        if ((str[i] >= 'A' && str[i] <= 'Z')
            || (str[i] >= 'a' && str[i] <= 'z'))
            letter++;
    }

    return letter;
}

// Function to count the number of numbers
function countOfNumbers( str)
{
    // Counter to store the number
    // of alphabets in the string
    var number = 0;

    // Every character in the string is iterated
    for (var i = 0; i < str.length; i++) {

        // To check if the character is
        // a digit or not
        if (str[i] >= '0' && str[i] <= '9')
            number++;
    }

    return number;
}

// Function to check if the
// count of alphabets is equal to
// the count of numbers or not
function check( str)
{
    if (countOfLetters(str) == countOfNumbers(str))
       document.write( "Yes<br>");
    else
       document.write( "No<br>");
}


var str = "GeeKs01324";
check(str);

// This code is contributed by SoumikMondal
</script>

Output:

Yes

Time Complexity: O(len), where len is the length of the string.
Auxiliary Space: O(1)