제출 #108223

#제출 시각아이디문제언어결과실행 시간메모리
108223SecretAgent007크레이피쉬 글쓰는 기계 (IOI12_scrivener)C++17
0 / 100
1070 ms8856 KiB
#include <bits/stdc++.h> using namespace std; vector< string > last; struct node{ node *parent, *from; char c; }; node *root = NULL; node *curr = NULL; void Init(){ } void TypeLetter(char c){ if(root == NULL){ root = new node{NULL,NULL,c}; curr = root; return; } node *temp = new node{NULL,NULL,c}; temp->parent = curr; temp->from = curr; curr = temp; } void UndoCommands(int n){ node *first = curr; for(int i = 0; i < n; i++){ curr = curr->from; } curr->from = first; } bool verif = false; string s = ""; char GetLetter(int n){ if(!verif){ node* Node = curr; while(Node){ s += Node->c; Node = Node->parent; } verif = true; reverse(s.begin(), s.end()); return s[n]; }else{ return s[n]; } }
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