Submission #134890

#	Time	Username	Problem	Language	Result	Execution time	Memory
134890		qrno	회문 (APIO14_palindrome)	C++14	8 / 100	1066 ms	61464 KiB

palindrome

#include <iostream>
#include <string>
#include <map>
using namespace std;

map <string, int> M;

bool isPalindrome(string s) {
    for (int i = 0; i < s.size(); i++) {
        if (s[i] != s[s.size()-i-1])
            return false;
    }
    return true;
}

int main() {

    string a;
    cin >> a;
    
    int ans = 0;

    for (int i = 0; i < a.size(); i++) {
        for (int j = i; j < a.size(); j++) {
            string s = "";
            for (int m = i; m <= j; m++) {
                s += a[m];
            }
            if (isPalindrome(s)) {
                M[s]++;
                int m = s.size();

                ans = max(ans, m*M[s]);
            }
        }
    }

    cout << ans << endl;

    return 0;
}

Compilation message (stderr)

palindrome.cpp: In function 'bool isPalindrome(std::__cxx11::string)':
palindrome.cpp:9:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); i++) {
                     ~~^~~~~~~~~~
palindrome.cpp: In function 'int main()':
palindrome.cpp:23:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < a.size(); i++) {
                     ~~^~~~~~~~~~
palindrome.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = i; j < a.size(); j++) {
                         ~~^~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 0 / 15
• Subtask 3: 0 / 24
• Subtask 4: 0 / 26
• Subtask 5: 0 / 27