제출 #47906

#제출 시각아이디문제언어결과실행 시간메모리
47906square1001회문 (APIO14_palindrome)C++14
23 / 100
1083 ms131072 KiB
#include <map> #include <string> #include <vector> #include <iostream> #include <algorithm> using namespace std; string s; map<string, int> d; int main() { cin >> s; int n = s.size(); for (int i = 0; i < n; i++) { for (int j = i + 1; j <= n; j++) { string t = s.substr(i, j - i); bool ok = true; for (int k = 0; k < t.size(); k++) { if (t[k] != t[t.size() - k - 1]) ok = false; } if (ok) d[t]++; } } int ret = 0; for (pair<string, int> i : d) { ret = max(ret, (int)i.first.size() * i.second); } cout << ret << '\n'; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

palindrome.cpp: In function 'int main()':
palindrome.cpp:15:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int k = 0; k < t.size(); k++) {
                    ~~^~~~~~~~~~
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