Question

How to check if lowercase and uppercase characters in a string are in same order with C#

Answer 1

using System;
 
class Program
{
    static bool lowercase_uppercase_characters_same_order(string s) { 
         int len = s.Length; 
         string lower_s = "", upper_s = ""; 
          
         for (int i = 0; i < len; i++) { 
             if (s[i] >= 65 && s[i] <= 90) 
                  upper_s += s[i];
         
             if (s[i] >= 97 && s[i] <= 122) 
                 lower_s += s[i]; 
         } 
         return lower_s.ToUpper() == upper_s; 
    } 
    static void Main() {
        string s = "cCshSHaARrpP"; // csharpCSHARP
     
        if (lowercase_uppercase_characters_same_order(s)) 
            Console.Write("Yes"); 
        else
            Console.Write("No"); 
    }
}
 
 
 
/*
run:
 
Yes
 
*/

 

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