Submission #1189606

#	Time	Username	Problem	Language	Result	Execution time	Memory
1189606		tapilyoca	Crayfish scrivener (IOI12_scrivener)	C++20	100 / 100	394 ms	223616 KiB

scrivener

#include<ext/rope>
int i=0;
__gnu_cxx::crope r[1000009];
void Init(){}
void TypeLetter(char L){i++;r[i]=r[i-1];r[i].push_back(L);}
void UndoCommands(int U) {i++;r[i]=r[i-U-1];}
char GetLetter(int P) {return r[i][P];}

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 22 / 22
• Subtask 4: 26 / 26
• Subtask 5: 40 / 40