Submission #1692157
Source Code Expand
#include <iostream> #include <cstdio> #include <cstdlib> #include <cstring> #include <algorithm> #include <vector> using namespace std; const int MAXN = 1000000 + 1000; int n; char s[MAXN], t[MAXN]; void no() { cout << -1 << endl; exit(0); } vector<int> sp, ri; void init() { int p = n; for(int i = n; i >= 1; i--) if(i == n || t[i] != t[i + 1] || i == p) { ri.push_back(i); while(p >= 1 && s[p] != t[i]) p--; if(p <= 0) no(); sp.push_back(p); p = p - 1; // cout << i << ' ' << p << endl; } reverse(sp.begin(), sp.end()); reverse(ri.begin(), ri.end()); sp.push_back(n + 1), ri.push_back(n + 1); // for(int i = 0; i < sp.size(); i++) // cout << sp[i] << ' ' << ri[i] << endl; } void solve() { if(strcmp(s + 1, t + 1) == 0) { cout << 0 << endl; exit(0); } int ans = 0; int pos = 0, cnt = 0; for(int i = 0; i < sp.size() - 1; i++) { if(cnt > 0) cnt--; while(i + cnt < sp.size() && sp[i + cnt] - cnt < ri[i]) cnt++; ans = max(ans, cnt); // cout << cnt << endl; } cout << ans << endl; } int main() { ios::sync_with_stdio(false); // freopen("game.in", "r", stdin); // freopen("game.out", "w", stdout); cin >> n; cin >> (s + 1); cin >> (t + 1); init(); solve(); return 0; } /* 12 abxxcdefghij aabbbbccdeee */ /* 8 bbaabbxx bbbbbbba */ /* 10 cydjgcbckr cccdggggcc */ /* 10 aaaaaaaa aaaaaaaa */
Submission Info
Submission Time | |
---|---|
Task | F - Shik and Copying String |
User | ct123098 |
Language | C++14 (GCC 5.4.1) |
Score | 1500 |
Code Size | 1467 Byte |
Status | AC |
Exec Time | 25 ms |
Memory | 12640 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1500 / 1500 | ||||
Status |
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Set Name | Test Cases |
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Sample | example0.txt, example1.txt, example2.txt, example3.txt |
All | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, 024.txt, 025.txt, 026.txt, 027.txt, 028.txt, 029.txt, 030.txt, 031.txt, 032.txt, 033.txt, 034.txt, 035.txt, 036.txt, 037.txt, 038.txt, 039.txt, 040.txt, 041.txt, 042.txt, 043.txt, 044.txt, 045.txt, 046.txt, 047.txt, 048.txt, 049.txt, 050.txt, 051.txt, 052.txt, 053.txt, 054.txt, 055.txt, 056.txt, 057.txt, 058.txt, example0.txt, example1.txt, example2.txt, example3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 1 ms | 256 KB |
001.txt | AC | 1 ms | 256 KB |
002.txt | AC | 1 ms | 256 KB |
003.txt | AC | 1 ms | 256 KB |
004.txt | AC | 1 ms | 256 KB |
005.txt | AC | 1 ms | 256 KB |
006.txt | AC | 1 ms | 256 KB |
007.txt | AC | 1 ms | 256 KB |
008.txt | AC | 1 ms | 256 KB |
009.txt | AC | 1 ms | 256 KB |
010.txt | AC | 1 ms | 256 KB |
011.txt | AC | 1 ms | 256 KB |
012.txt | AC | 1 ms | 256 KB |
013.txt | AC | 1 ms | 256 KB |
014.txt | AC | 1 ms | 256 KB |
015.txt | AC | 1 ms | 256 KB |
016.txt | AC | 1 ms | 256 KB |
017.txt | AC | 1 ms | 256 KB |
018.txt | AC | 1 ms | 256 KB |
019.txt | AC | 1 ms | 256 KB |
020.txt | AC | 1 ms | 256 KB |
021.txt | AC | 1 ms | 256 KB |
022.txt | AC | 1 ms | 256 KB |
023.txt | AC | 1 ms | 256 KB |
024.txt | AC | 1 ms | 256 KB |
025.txt | AC | 17 ms | 10208 KB |
026.txt | AC | 17 ms | 10592 KB |
027.txt | AC | 12 ms | 6372 KB |
028.txt | AC | 25 ms | 11360 KB |
029.txt | AC | 25 ms | 8800 KB |
030.txt | AC | 19 ms | 9820 KB |
031.txt | AC | 20 ms | 12128 KB |
032.txt | AC | 19 ms | 9056 KB |
033.txt | AC | 20 ms | 11104 KB |
034.txt | AC | 19 ms | 11232 KB |
035.txt | AC | 18 ms | 9952 KB |
036.txt | AC | 15 ms | 5860 KB |
037.txt | AC | 14 ms | 5484 KB |
038.txt | AC | 14 ms | 5484 KB |
039.txt | AC | 13 ms | 5484 KB |
040.txt | AC | 21 ms | 12256 KB |
041.txt | AC | 20 ms | 10592 KB |
042.txt | AC | 18 ms | 10592 KB |
043.txt | AC | 17 ms | 10076 KB |
044.txt | AC | 18 ms | 11104 KB |
045.txt | AC | 18 ms | 10336 KB |
046.txt | AC | 17 ms | 10204 KB |
047.txt | AC | 17 ms | 11616 KB |
048.txt | AC | 18 ms | 11360 KB |
049.txt | AC | 18 ms | 10204 KB |
050.txt | AC | 14 ms | 11232 KB |
051.txt | AC | 14 ms | 12640 KB |
052.txt | AC | 10 ms | 6372 KB |
053.txt | AC | 15 ms | 6372 KB |
054.txt | AC | 15 ms | 6372 KB |
055.txt | AC | 15 ms | 6372 KB |
056.txt | AC | 15 ms | 6372 KB |
057.txt | AC | 15 ms | 6372 KB |
058.txt | AC | 15 ms | 6372 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |
example2.txt | AC | 1 ms | 256 KB |
example3.txt | AC | 1 ms | 256 KB |