Submission #71768

#	Time	Username	Problem	Language	Result	Execution time	Memory
71768		RezwanArefin01	Crayfish scrivener (IOI12_scrivener)	C++17	100 / 100	879 ms	224032 KiB

scrivener

#include <ext/rope> 

int idx = 0; 
__gnu_cxx::crope s[1000100]; 
void Init() {}
void TypeLetter(char L) {
    idx++; s[idx] = s[idx - 1]; 
    s[idx].push_back(L); 
}

void UndoCommands(int U) {
    ++idx; s[idx] = s[idx - U - 1]; 
}

char GetLetter(int P) {
    return s[idx][P];
}

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