Coding Challenge to find the given string is a Pangram or not Pangram is a string which will contain all the alphabets (a-z) Example: "The quick brown fox jumps over the lazy dog" From Wikipedia Conditions: * Spaces allowed in the input * Check the given string contains at least once of all the alphabets a-z * Case in sensitive public static bool CheckIsPangram( string str) { List < string > LstAtoZ = Enumerable .Range( 'A' , 26) .Select(x => ( char )x + "" ) .ToList(); str = str.Replace( " " , "" ); foreach ( char chr in str) { if (LstAtoZ.Contains(chr.ToString().ToUpper())) { LstAtoZ.Remove(chr.ToString().ToUpper()); } } retur