Question

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

Answer 1

#include <bits/stdc++.h> 

using namespace std; 

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 = upper_s + s[i]; 
  
        if (s[i] >= 97 && s[i] <= 122) 
            lower_s = lower_s + s[i]; 
    } 
  
    transform(lower_s.begin(), lower_s.end(), lower_s.begin(), ::toupper); 
  
    return lower_s == upper_s; 
} 
  
int main() 
{                       
    string s = "cpCPppPrPoRO"; // cppproCPPPRO
  
    lowercase_uppercase_characters_same_order(s) ? cout << "Yes" : cout << "No"; 
  
    return 0; 
} 



/*
run:

Yes

*/

 

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