Hi Chanti
please try below code
static void Main()
{
string string1 = "ABCDEFGH";
string string2 = "ABCDFGK";
bool result = CheckStrings(string1, string2);
Console.WriteLine(result ? "Strings match the criteria." : "Strings do not match the criteria.");
}
static bool CheckStrings(string str1, string str2)
{
// Check if lengths match the required criteria
if (Math.Abs(str1.Length - str2.Length) != 1)
return false;
// Identify missing vowel and different consonant
int vowelCount1 = 0, vowelCount2 = 0;
char differentChar = '\0';
bool foundDifference = false;
int minLength = Math.Min(str1.Length, str2.Length);
for (int i = 0; i < minLength; i++)
{
if (str1[i] != str2[i])
{
// If we already found a difference, it's invalid
if (foundDifference)
return false;
differentChar = str1[i] != str2[i] ? str2[i] : str1[i];
foundDifference = true;
}
if (IsVowel(str1[i])) vowelCount1++;
if (IsVowel(str2[i])) vowelCount2++;
}
// Handle the extra character in the longer string
if (str1.Length > str2.Length)
{
if (IsVowel(str1[minLength])) vowelCount1++;
}
else
{
if (IsVowel(str2[minLength])) vowelCount2++;
}
// Check if we have one vowel missing and one consonant different
return (Math.Abs(vowelCount1 - vowelCount2) == 1) && foundDifference;
}
static bool IsVowel(char c)
{
return "AEIOUaeiou".IndexOf(c) >= 0;
}
