# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
101359 | 2019-03-18T17:20:20 Z | ZwariowanyMarcin | Palindromes (APIO14_palindrome) | C++14 | 382 ms | 11584 KB |
#include <bits/stdc++.h> #define pb push_back #define ll long long #define ss(v) (int)v.size() #define fi first #define se second using namespace std; const int nax = 2 * 300100; char c[nax]; int kmr[nax]; pair < pair < int, int > , int > help[nax]; int gdzie[nax]; int lcp[nax]; stack < pair < int, int > > s; int lewo[nax], prawo[nax]; int main() { scanf("%s", c + 1); int n = strlen(c + 1); ll ans = n; for(int i = 1; n >= i; ++i) kmr[i] = c[i]; for(int j = 1; 1000 > j; ++j) { for(int i = 1; n >= i; ++i) help[i] = {{kmr[i], kmr[i + (1 << (j - 1))]}, i}; sort(help + 1, help + n + 1); int cnt = 1; for(int i = 1; n >= i; ++i) { kmr[help[i].se] = cnt; if(help[i].fi != help[i + 1].fi) cnt++; } if(cnt == n + 1) break; } for(int i = 1; n >= i; ++i) gdzie[kmr[i]] = i; int k = 0; for(int i = 1; n >= i; ++i) { while(c[i + k] == c[gdzie[kmr[i] + 1] + k]) k++; lcp[kmr[i]] = k; if(k) --k; } for(int i = 1; n >= i; ++i) lewo[i] = prawo[i] = i; for(int i = 1; n >= i; ++i) { while(!s.empty() && s.top().first > lcp[i]) { prawo[s.top().second] = i; s.pop(); } s.push({lcp[i], i}); } while(!s.empty()) s.pop(); for(int i = n; i >= 1; --i) { while(!s.empty() && s.top().first > lcp[i]) { lewo[s.top().second] = i + 1; s.pop(); } s.push({lcp[i], i}); } while(!s.empty()) { lewo[s.top().se] = 1; s.pop(); } for(int i = 1; n >= i; ++i) ans = max(ans, (ll)(lcp[i] * (prawo[i] - lewo[i] + 1))); printf("%lld", ans); }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 3 ms | 384 KB | Output is correct |
2 | Correct | 2 ms | 384 KB | Output is correct |
3 | Correct | 2 ms | 384 KB | Output is correct |
4 | Correct | 2 ms | 384 KB | Output is correct |
5 | Incorrect | 2 ms | 384 KB | Output isn't correct |
6 | Halted | 0 ms | 0 KB | - |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Incorrect | 3 ms | 384 KB | Output isn't correct |
2 | Halted | 0 ms | 0 KB | - |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Incorrect | 9 ms | 768 KB | Output isn't correct |
2 | Halted | 0 ms | 0 KB | - |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Incorrect | 104 ms | 4184 KB | Output isn't correct |
2 | Halted | 0 ms | 0 KB | - |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Incorrect | 382 ms | 11584 KB | Output isn't correct |
2 | Halted | 0 ms | 0 KB | - |