# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
194140 | 2020-01-15T20:17:53 Z | c4ts0up | Crayfish scrivener (IOI12_scrivener) | C++17 | 0 ms | 0 KB |
/* vector <char> A[1e6+5]; vector <int> idx[1e6+5]; idx = -1; stack <pair <char, int> > Ins; */ #include <bits/stdc++.h> using namespace std; vector <string> After; string curr; void Init() { curr = "" After.push_back(curr); } void TypeLetter(char L) { curr.push_back(L); After.push_back(curr); } void UndoCommands(int U) { curr = After[After.size()-1-U]; After.push_back(curr); } char GetLetter(int p) { return curr[p]; }