oj.uz

Submission #48007

# Submission time Handle Problem Language Result Execution time Memory
48007 2018-05-09T11:23:07 Z E869120 Palindromes (APIO14_palindrome) C++14
23 / 100
 937 ms 17740 KB 
#include <iostream>
#include <string>
#include <algorithm>
#include <map>
using namespace std;

long long roll1[1009][1009], roll2[1009][1009]; string S;
map<long long, long long>M;

int main() {
	cin >> S;
	for (int i = 0; i < S.size(); i++) {
		for (int j = i; j < S.size(); j++) {
			if (j != 0) roll1[i][j] = roll1[i][j - 1] * 331LL;
			roll1[i][j] += (S[j] - 'a' + 1);
		}
	}
	for (int i = 0; i < S.size(); i++) {
		for (int j = i; j >= 0; j--) {
			roll2[i][j] = roll2[i][j + 1] * 331LL;
			roll2[i][j] += (S[j] - 'a' + 1);
		}
	}
	long long maxn = 0;
	for (int i = 0; i < S.size(); i++) {
		for (int j = i; j < S.size(); j++) {
			if (roll1[i][j] != roll2[j][i]) continue;
			M[roll1[i][j]] += (j - i + 1);
			maxn = max(maxn, M[roll1[i][j]]);
		}
	}
	cout << maxn << endl;
	return 0;
}

Compilation message

palindrome.cpp: In function 'int main()':
palindrome.cpp:12:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < S.size(); i++) {
                  ~~^~~~~~~~~~
palindrome.cpp:13:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = i; j < S.size(); j++) {
                   ~~^~~~~~~~~~
palindrome.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < S.size(); i++) {
                  ~~^~~~~~~~~~
palindrome.cpp:25:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < S.size(); i++) {
                  ~~^~~~~~~~~~
palindrome.cpp:26:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = i; j < S.size(); j++) {
                   ~~^~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 2 ms 592 KB Output is correct
5 Correct 2 ms 592 KB Output is correct
6 Correct 2 ms 592 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 2 ms 592 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 2 ms 732 KB Output is correct
12 Correct 2 ms 732 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 2 ms 860 KB Output is correct
15 Correct 2 ms 860 KB Output is correct
16 Correct 2 ms 860 KB Output is correct
17 Correct 2 ms 860 KB Output is correct
18 Correct 2 ms 860 KB Output is correct
19 Correct 3 ms 1500 KB Output is correct
20 Correct 3 ms 1500 KB Output is correct
21 Correct 3 ms 1500 KB Output is correct
22 Correct 3 ms 1500 KB Output is correct
23 Correct 3 ms 1500 KB Output is correct
24 Correct 4 ms 1500 KB Output is correct
25 Correct 3 ms 1500 KB Output is correct
26 Correct 3 ms 1500 KB Output is correct
27 Correct 3 ms 1500 KB Output is correct
28 Correct 3 ms 1500 KB Output is correct
29 Correct 3 ms 1500 KB Output is correct
30 Correct 3 ms 1500 KB Output is correct
31 Correct 3 ms 1500 KB Output is correct
32 Correct 3 ms 1500 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 14460 KB Output is correct
2 Correct 32 ms 14460 KB Output is correct
3 Correct 91 ms 14460 KB Output is correct
4 Correct 22 ms 14460 KB Output is correct
5 Correct 81 ms 14460 KB Output is correct
6 Correct 82 ms 14588 KB Output is correct
7 Correct 26 ms 14588 KB Output is correct
8 Correct 52 ms 14588 KB Output is correct
9 Correct 21 ms 14588 KB Output is correct
10 Correct 20 ms 14588 KB Output is correct
11 Correct 21 ms 14588 KB Output is correct
12 Correct 22 ms 14588 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Runtime error 55 ms 16764 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 26.0

# Verdict Execution time Memory Grader output
1 Runtime error 445 ms 17260 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 937 ms 17740 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -