#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define FORd(i, a, b) for (int i = (a); i >= (b); i--)
#define REP(i, n) FOR(i, 0, n)
using namespace std;
struct node {
node* ch[30];
node* par;
char c;
node(node* n, char cc) {
REP(i, 26) ch[i] = 0;
par = n, c = cc;
}
};
node* root;
vector <node*> ve;
int flag;
string s;
void Init() {
root = new node(NULL, '.');
ve.push_back(root);
return;
}
void TypeLetter(char L) {
flag = 1;
int x = (L - 'a');
if (!root->ch[x]) root->ch[x] = new node(root, L);
root = root->ch[x];
ve.push_back(root);
return;
}
void UndoCommands(int U) {
flag = 1;
root = ve[ve.size() - 1 - U];
ve.push_back(root);
return;
}
char GetLetter(int P) {
if (flag) {
s = "";
node* curr = root;
while (curr) {
s.push_back(curr->c);
curr = curr->par;
}
reverse(s.begin(), s.end());
flag = 0;
}
return s[P + 1];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
256 KB |
Output is correct |
6 |
Correct |
3 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
384 KB |
Output is correct |
8 |
Correct |
2 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
3 ms |
384 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
384 KB |
Output is correct |
6 |
Correct |
2 ms |
384 KB |
Output is correct |
7 |
Correct |
2 ms |
256 KB |
Output is correct |
8 |
Correct |
3 ms |
384 KB |
Output is correct |
9 |
Correct |
2 ms |
384 KB |
Output is correct |
10 |
Correct |
2 ms |
384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
768 KB |
Output is correct |
2 |
Correct |
5 ms |
768 KB |
Output is correct |
3 |
Correct |
4 ms |
768 KB |
Output is correct |
4 |
Correct |
3 ms |
1152 KB |
Output is correct |
5 |
Correct |
4 ms |
768 KB |
Output is correct |
6 |
Correct |
6 ms |
1408 KB |
Output is correct |
7 |
Correct |
4 ms |
1280 KB |
Output is correct |
8 |
Correct |
6 ms |
1024 KB |
Output is correct |
9 |
Correct |
15 ms |
1124 KB |
Output is correct |
10 |
Correct |
4 ms |
768 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
274 ms |
159996 KB |
Output is correct |
2 |
Correct |
311 ms |
179768 KB |
Output is correct |
3 |
Correct |
399 ms |
174936 KB |
Output is correct |
4 |
Correct |
481 ms |
134100 KB |
Output is correct |
5 |
Correct |
288 ms |
152184 KB |
Output is correct |
6 |
Correct |
386 ms |
194128 KB |
Output is correct |
7 |
Correct |
312 ms |
96852 KB |
Output is correct |
8 |
Correct |
373 ms |
146132 KB |
Output is correct |
9 |
Correct |
425 ms |
199040 KB |
Output is correct |
10 |
Correct |
279 ms |
145876 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1058 ms |
11764 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |