Question

How to to check if all the characters of a string are same in C++

Answer 1

#include <iostream>

using namespace std;

bool all_characters_are_the_same(string s) { 
    return s.find_first_not_of(s[0]) == string::npos; 
} 
  
int main() 
{ 
    string s = "aaaa"; 
    
    if (all_characters_are_the_same(s)) 
        cout << "Yes"; 
    else
        cout << "No"; 
  
    return 0; 
} 


/*
run:

Yes

*/

 

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