Question

How to check if a string contains identical digits in C++

Answer 1

#include <algorithm>
#include <iostream>
#include <string>
#include <set>

bool isStringContainIdenticalDigits(const std::string& str) {
    std::set<char> set(str.begin(), str.end());
        
    return set.size() == 1;
}

int main() {
    std::string str = "8888888";

    if (isStringContainIdenticalDigits(str)) {
        std::cout << "yes" << std::endl;
    } else {
        std::cout << "no" << std::endl;
    }
}



/*
run:
 
yes
 
*/

 

70+ SQL courses for beginners and professionals