Question

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

Answer 1

#include <stdio.h>
#include <string.h>
#include <stdbool.h>
   
bool all_characters_are_the_same(char *s) {
	int len =  strlen(s);
    
	for (int i = 1; i < len; i++) 
        if (s[i] != s[0]) 
            return false; 
   
    return true; 
} 
        
int main() 
{                       
    char s[] = "aaaaa";
    
    if (all_characters_are_the_same(s)) { 
        puts("Yes");
    } 
    else { 
        puts("No");
    } 
                  
    return 0; 
} 
           
           
           
/*
run:
           
yes
           
*/

 

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