Submission #47906

#	Time	Username	Problem	Language	Result	Execution time	Memory
47906		square1001	Palindromes (APIO14_palindrome)	C++14	23 / 100	1083 ms	131072 KiB

palindrome

#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;
}

Compilation message (stderr)

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++) {
                    ~~^~~~~~~~~~

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