#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
string S, T;
vector<pair<long long, int>> vec[3009];
long long hash_val(string U) {
long long r = 0;
for (int i = 0; i < U.size(); i++) {
r *= 100LL;
r += (long long)(U[i] - 'a' + 1LL);
r %= 2147483647LL;
}
return r;
}
vector<long long> get_substring(string U) {
vector<long long> a;
for (int i = 0; i < U.size(); i++) {
long long r = 0, cx = i;
for (int j = 0; j < U.size(); j++) {
r *= 100LL;
r += (long long)(U[cx] - 'a' + 1LL);
r %= 2147483647LL;
cx++; if (cx == U.size()) cx = 0;
}
a.push_back(r);
}
return a;
}
int main() {
cin >> S >> T;
for (int i = 0; i < S.size(); i++) {
for (int j = i + 1; j <= S.size(); j++) {
string G = S.substr(i, j - i);
vector<long long> V1 = get_substring(G); reverse(G.begin(), G.end());
vector<long long> V2 = get_substring(G);
for (int k = 0; k < V1.size(); k++) vec[j - i].push_back(make_pair(V1[k], i));
for (int k = 0; k < V2.size(); k++) vec[j - i].push_back(make_pair(V2[k], i));
}
}
for (int i = 0; i <= S.size(); i++) sort(vec[i].begin(), vec[i].end());
int maxn = 0; pair<int, int> maxid = make_pair(-1, -1);
for (int i = 0; i < T.size(); i++) {
for (int j = i + 1; j <= T.size(); j++) {
string G = T.substr(i, j - i);
long long v = hash_val(G);
int pos1 = lower_bound(vec[j - i].begin(), vec[j - i].end(), make_pair(v, 0)) - vec[j - i].begin();
if (pos1 < vec[j - i].size() && vec[j - i][pos1].first == v) {
if (maxn < j - i) {
maxn = j - i;
maxid = make_pair(vec[j - i][pos1].second, i);
}
}
}
}
cout << maxn << endl;
cout << maxid.first << " " << maxid.second << endl;
return 0;
}
Compilation message
necklace.cpp: In function 'long long int hash_val(std::__cxx11::string)':
necklace.cpp:12:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < U.size(); i++) {
~~^~~~~~~~~~
necklace.cpp: In function 'std::vector<long long int> get_substring(std::__cxx11::string)':
necklace.cpp:22:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < U.size(); i++) {
~~^~~~~~~~~~
necklace.cpp:24:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = 0; j < U.size(); j++) {
~~^~~~~~~~~~
necklace.cpp:28:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
cx++; if (cx == U.size()) cx = 0;
~~~^~~~~~~~~~~
necklace.cpp: In function 'int main()':
necklace.cpp:37:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < S.size(); i++) {
~~^~~~~~~~~~
necklace.cpp:38:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = i + 1; j <= S.size(); j++) {
~~^~~~~~~~~~~
necklace.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int k = 0; k < V1.size(); k++) vec[j - i].push_back(make_pair(V1[k], i));
~~^~~~~~~~~~~
necklace.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int k = 0; k < V2.size(); k++) vec[j - i].push_back(make_pair(V2[k], i));
~~^~~~~~~~~~~
necklace.cpp:46:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i <= S.size(); i++) sort(vec[i].begin(), vec[i].end());
~~^~~~~~~~~~~
necklace.cpp:49:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < T.size(); i++) {
~~^~~~~~~~~~
necklace.cpp:50:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = i + 1; j <= T.size(); j++) {
~~^~~~~~~~~~~
necklace.cpp:55:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (pos1 < vec[j - i].size() && vec[j - i][pos1].first == v) {
~~~~~^~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
155 ms |
7544 KB |
Output is correct |
2 |
Correct |
159 ms |
7416 KB |
Output is correct |
3 |
Correct |
71 ms |
3960 KB |
Output is correct |
4 |
Correct |
163 ms |
7472 KB |
Output is correct |
5 |
Correct |
150 ms |
7040 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
155 ms |
7544 KB |
Output is correct |
2 |
Correct |
159 ms |
7416 KB |
Output is correct |
3 |
Correct |
71 ms |
3960 KB |
Output is correct |
4 |
Correct |
163 ms |
7472 KB |
Output is correct |
5 |
Correct |
150 ms |
7040 KB |
Output is correct |
6 |
Execution timed out |
1560 ms |
17348 KB |
Time limit exceeded |
7 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
155 ms |
7544 KB |
Output is correct |
2 |
Correct |
159 ms |
7416 KB |
Output is correct |
3 |
Correct |
71 ms |
3960 KB |
Output is correct |
4 |
Correct |
163 ms |
7472 KB |
Output is correct |
5 |
Correct |
150 ms |
7040 KB |
Output is correct |
6 |
Execution timed out |
1560 ms |
17348 KB |
Time limit exceeded |
7 |
Halted |
0 ms |
0 KB |
- |