Check if a string can be split into two substrings with equal number of vowels

// C# code for above approach
using System;

class Program {
    // Function to check if any
    // character is a vowel or not
    static bool IsVowel(char c)
    {
        return (c == 'a' || c == 'e' || c == 'i' || c == 'o'
                || c == 'u' || c == 'A' || c == 'E'
                || c == 'I' || c == 'O' || c == 'U');
    }
    // Function to check if string S
    // can be split into two substrings
    // with equal number of vowels
    static void ContainsEqualStrings(string S)
    {
        int n = S.Length;
        bool found = false;

        // Traversing in the given string
        for (int i = 0; i < n - 1; i++) {
            int vowelsLeft = 0, vowelsRight = 0;

            // Count the number of vowels in left substring
            for (int j = 0; j <= i; j++) {
                if (IsVowel(S[j])) {
                    vowelsLeft++;
                }
            }

            // Count the number of vowels in right substring
            for (int j = i + 1; j < n; j++) {
                if (IsVowel(S[j])) {
                    vowelsRight++;
                }
            }

            // check if substrings has equal
            // number of vowels
            if (vowelsLeft == vowelsRight) {
                found = true;
                break;
            }
        }

        if (found) {
            Console.WriteLine("Yes");
        }
        else {
            Console.WriteLine("No");
        }
    }

    // Driver Code
    static void Main()
    {
        string S = "geeks";
        ContainsEqualStrings(S);
    }
}
// This code is contributed by sarojmcy2e

// C# program for the above approach
using System;
class GFG
{

    // Function to check if any
    // character is a vowel or not
    public static bool isVowel(char ch)
    {
      
        // Lowercase vowels
        if (ch == 'a' || ch == 'e' || ch == 'i'
            || ch == 'o' || ch == 'u')
            return true;

        // Uppercase vowels
        if (ch == 'A' || ch == 'E' || ch == 'I'
            || ch == 'O' || ch == 'U')
            return true;

        // Otherwise
        return false;
    }

    // Function to check if string S
    // can be split into two substrings
    // with equal number of vowels
    public static String
    containsEqualStrings(string S)
    {

        // Stores the count of vowels
        // in the string S
        int totalVowels = 0;

        // Traverse over the string
        for (int i = 0;
             i < S.Length; i++)
        {

            // If S[i] is vowel
            if (isVowel(S[i]))
                totalVowels++;
        }

        // Stores the count of vowels
        // upto the current index
        int vowelsTillNow = 0;

        // Traverse over the string
        for (int i = 0;
             i < S.Length; i++) {

            // If S[i] is vowel
            if (isVowel(S[i])) {
                vowelsTillNow++;
                totalVowels--;

                // If vowelsTillNow and
                // totalVowels are equal
                if (vowelsTillNow
                    == totalVowels) {

                    return "Yes";
                }
            }
        }

        // Otherwise
        return "No";
    }

// Driver Code
static public void Main()
{
    string S = "geeks";
    Console.WriteLine(
        containsEqualStrings(S));
}
}

// This code is contributed by code_hunt.

using System;

class Program
{
    // Function to check if a character is a vowel or not.
    static bool IsVowel(char c)
    {
        return (c == 'a' || c == 'e' || c == 'i' || c == 'o'
            || c == 'u' || c == 'A' || c == 'E' || c == 'I'
            || c == 'O' || c == 'U');
    }

    static void IsEqualVowels(string s)
    {
        int len = s.Length; // Length of the string
        int countVowels = 0;

        // Count the number of vowels present in the string
        for (int i = 0; i < len; i++)
        {
            if (IsVowel(s[i]))
                countVowels++;
        }

        if (countVowels % 2 == 0) // If the count of vowels is even, then print "Yes"
            Console.WriteLine("Yes");
        else // Otherwise, print "No"
            Console.WriteLine("No");
    }
// Driver code
    static void Main()
    {
        string s = "geeks"; // Input string
        IsEqualVowels(s);
    }
}