Question

How to check if second string a rotated version of first string in C++

Answer 1

#include <iostream>

bool isSecondStringRotatedOfFirstString(const std::string str1, const std::string str2) {
    if (str1.length() != str2.length()) {
        return false;
    }
    
    std::string concatenated = str1 + str1;

    return concatenated.find(str2) != std::string::npos;
}


int main() {
    std::string first = "abcdefg";
    std::string second = "cdefgab";
    
    std::cout << (isSecondStringRotatedOfFirstString(first, second) ? "yes" : "no");
}


 
 
 
/*
run:

yes
 
*/

 

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