A30579 字符串移位 全站首个题解

#include <iostream>
#include <string>

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(NULL);

    std::string s1, s2;
    std::cin >> s1 >> s2;

    bool found = false;

    if (s1.length() >= s2.length()) {
        std::string s1_doubled = s1 + s1;
        if (s1_doubled.find(s2) != std::string::npos) {
            found = true;
        }
    }

    if (!found && s2.length() >= s1.length()) {
        std::string s2_doubled = s2 + s2;
        if (s2_doubled.find(s1) != std::string::npos) {
            found = true;
        }
    }

    if (found) {
        std::cout << "true\n";
    } else {
        std::cout << "false\n";
    }

    return 0;
}