oj.uz

Submission #165731

# Submission time Handle Problem Language Result Execution time Memory
165731 2019-11-28T12:02:15 Z Sensei Lozinke (COCI17_lozinke) C++17
45 / 100
 1000 ms 65540 KB 
#include <bits/stdc++.h>

using namespace std;

const long long P = 53;
const long long MOD = 1e9 + 7;

const int MAXN = 2e4;

long long add (long long x, long long y) {
	return ((x % MOD) + (y % MOD)) % MOD;
}

long long mul (long long x, long long y) {
	return ((x % MOD) * (y % MOD)) % MOD;
}

map<long long, set<int> > m;
string st[MAXN + 7];
bool s[MAXN + 7][MAXN + 7];

int main () {
	int N;
	cin >> N;

	for (int i = 1; i <= N; i++) {
		cin >> st[i];
	}

	for (int i = 1; i <= N; i++) {
		long long hash = 0;

		for (int j = 0; j < st[i].size(); j++) {
			hash = mul(hash, P);
			hash = add(hash, st[i][j] - 'a' + 1);
		}

		m[hash].insert(i);
	}

	long long ans = 0;

	for (int i = 1; i <= N; i++) {

		for (int ss = 0; ss < st[i].size(); ss++) {
			long long hash = 0;

			for (int j = ss; j < st[i].size(); j++) {
				if (ss == 0 && j + 1 == st[i].size()) {
					break;
				}

				hash = mul(hash, P);
				hash = add(hash, st[i][j] - 'a' + 1);

				if (m.find(hash) != m.end()) {
					for (int id : m[hash]) {
						if (id != i) {
							s[i][id] = true;
						}
					}
				}
			}
		}

		for (int j = 1; j <= N; j++) {
			if (s[i][j]) {
				ans++;
			}
		}
	}

	long long ans2 = 0;

	for (int i = 1; i <= N; i++) {
		long long hash = 0;

		for (int j = 0; j < st[i].size(); j++) {
			hash = mul(hash, P);
			hash = add(hash, st[i][j] - 'a' + 1);
		}

		ans2 += m[hash].size() - 1;
	}

	ans += ans2;

	cout << ans << "\n";

	return 0;
}

Compilation message

lozinke.cpp: In function 'int main()':
lozinke.cpp:33:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < st[i].size(); j++) {
                   ~~^~~~~~~~~~~~~~
lozinke.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int ss = 0; ss < st[i].size(); ss++) {
                    ~~~^~~~~~~~~~~~~~
lozinke.cpp:48:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int j = ss; j < st[i].size(); j++) {
                     ~~^~~~~~~~~~~~~~
lozinke.cpp:49:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (ss == 0 && j + 1 == st[i].size()) {
                    ~~~~~~^~~~~~~~~~~~~~~
lozinke.cpp:78:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < st[i].size(); j++) {
                   ~~^~~~~~~~~~~~~~

Subtask #1
45.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1144 KB Output is correct
3 Correct 3 ms 1400 KB Output is correct
4 Correct 5 ms 2808 KB Output is correct
5 Correct 14 ms 5496 KB Output is correct
6 Correct 21 ms 7928 KB Output is correct
7 Correct 36 ms 11896 KB Output is correct
8 Correct 25 ms 1272 KB Output is correct
9 Runtime error 444 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
10 Correct 410 ms 2680 KB Output is correct
11 Runtime error 449 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
12 Incorrect 915 ms 3320 KB Output isn't correct
13 Runtime error 373 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
14 Runtime error 372 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
15 Execution timed out 1064 ms 3996 KB Time limit exceeded
16 Runtime error 522 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
17 Execution timed out 1059 ms 2448 KB Time limit exceeded
18 Execution timed out 1087 ms 28008 KB Time limit exceeded
19 Runtime error 387 ms 65536 KB Execution killed with signal 9 (could be triggered by violating memory limits)
20 Runtime error 572 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)