#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
using namespace std;bool u[70000];int t[70000], p[70000][10], q[70000][10][10];int main() {ios_base::sync_with_stdio(0);cin.tie(0);int n, m = 0, e = 0;string s;cin >> n >> s;u[0] = true;t[m++] = s[0] - 'a';FOR(i, 1, n) {if (s[i] != 'e') {if (s[i - 1] == 'e') u[m] = true;t[m++] = s[i] - 'a';} else e++;}memset(q[0], 0x3f, sizeof q[0]);FOR(c, 0, 10) p[0][c] = (c == t[0] ? 0 : 2);FOR(i, 0, m) {FOR(c, 0, 10) {p[i + 1][c] = min(p[i][t[i]], q[i][t[i]][t[i]]) + 2;if (c != t[i]) {p[i + 1][c] = min(p[i + 1][c], q[i][t[i]][c]);if (!u[i]) p[i + 1][c] = min(p[i + 1][c], p[i][c]);}FOR(d, 0, 10) {q[i + 1][c][d] = min(p[i][t[i]], q[i][t[i]][t[i]]) + 5;if (c != t[i]) {q[i + 1][c][d] = min(q[i + 1][c][d], min(p[i][c], q[i][c][t[i]]) + 3);if (d != t[i]) q[i + 1][c][d] = min(q[i + 1][c][d], q[i][c][d] + 1);}if (d != t[i]) q[i + 1][c][d] = min(q[i + 1][c][d], q[i][t[i]][d] + 3);}}}cout << 2 * e + p[m][4] - 2;return 0;}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
512 KB |
Output is correct |
| 3 |
Correct |
5 ms |
512 KB |
Output is correct |
| 4 |
Correct |
5 ms |
512 KB |
Output is correct |
| 5 |
Correct |
5 ms |
512 KB |
Output is correct |
| 6 |
Correct |
5 ms |
512 KB |
Output is correct |
| 7 |
Correct |
5 ms |
512 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
4 ms |
384 KB |
Output is correct |
| 10 |
Correct |
4 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
4 ms |
384 KB |
Output is correct |
| 13 |
Correct |
4 ms |
512 KB |
Output is correct |
| 14 |
Correct |
5 ms |
512 KB |
Output is correct |
| 15 |
Correct |
5 ms |
512 KB |
Output is correct |
| 16 |
Correct |
5 ms |
512 KB |
Output is correct |
| 17 |
Correct |
5 ms |
640 KB |
Output is correct |
| 18 |
Correct |
5 ms |
512 KB |
Output is correct |
| 19 |
Correct |
5 ms |
384 KB |
Output is correct |
| 20 |
Correct |
5 ms |
512 KB |
Output is correct |
| 21 |
Correct |
5 ms |
512 KB |
Output is correct |
| 22 |
Correct |
5 ms |
512 KB |
Output is correct |
| 23 |
Correct |
5 ms |
512 KB |
Output is correct |
| 24 |
Correct |
5 ms |
512 KB |
Output is correct |
| 25 |
Correct |
5 ms |
512 KB |
Output is correct |
| 26 |
Correct |
5 ms |
512 KB |
Output is correct |
| 27 |
Correct |
5 ms |
512 KB |
Output is correct |
| 28 |
Correct |
5 ms |
512 KB |
Output is correct |
| 29 |
Correct |
5 ms |
512 KB |
Output is correct |
| 30 |
Correct |
5 ms |
512 KB |
Output is correct |
| 31 |
Correct |
5 ms |
512 KB |
Output is correct |
| 32 |
Correct |
5 ms |
512 KB |
Output is correct |
| 33 |
Correct |
5 ms |
512 KB |
Output is correct |
| 34 |
Correct |
5 ms |
512 KB |
Output is correct |
| 35 |
Correct |
6 ms |
512 KB |
Output is correct |
| 36 |
Correct |
5 ms |
512 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
6 ms |
1152 KB |
Output is correct |
| 2 |
Correct |
6 ms |
1536 KB |
Output is correct |
| 3 |
Correct |
5 ms |
896 KB |
Output is correct |
| 4 |
Correct |
6 ms |
1152 KB |
Output is correct |
| 5 |
Correct |
6 ms |
1664 KB |
Output is correct |
| 6 |
Correct |
7 ms |
1920 KB |
Output is correct |
| 7 |
Correct |
6 ms |
1408 KB |
Output is correct |
| 8 |
Correct |
8 ms |
1408 KB |
Output is correct |
| 9 |
Correct |
6 ms |
1536 KB |
Output is correct |
| 10 |
Correct |
6 ms |
1536 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
31 ms |
19840 KB |
Output is correct |
| 2 |
Correct |
31 ms |
19072 KB |
Output is correct |
| 3 |
Correct |
33 ms |
20096 KB |
Output is correct |
| 4 |
Correct |
32 ms |
20480 KB |
Output is correct |
| 5 |
Correct |
38 ms |
22776 KB |
Output is correct |
| 6 |
Correct |
19 ms |
10496 KB |
Output is correct |
| 7 |
Correct |
28 ms |
17152 KB |
Output is correct |
| 8 |
Correct |
32 ms |
19832 KB |
Output is correct |
| 9 |
Correct |
25 ms |
14720 KB |
Output is correct |
| 10 |
Correct |
23 ms |
14072 KB |
Output is correct |
| 11 |
Correct |
34 ms |
20476 KB |
Output is correct |
| 12 |
Correct |
35 ms |
22776 KB |
Output is correct |
| 13 |
Correct |
39 ms |
22500 KB |
Output is correct |
| 14 |
Correct |
35 ms |
22008 KB |
Output is correct |
| 15 |
Correct |
32 ms |
18552 KB |
Output is correct |
| 16 |
Correct |
34 ms |
20224 KB |
Output is correct |
| 17 |
Correct |
32 ms |
19840 KB |
Output is correct |
| 18 |
Correct |
32 ms |
20096 KB |
Output is correct |
| 19 |
Correct |
32 ms |
19072 KB |
Output is correct |
| 20 |
Correct |
26 ms |
16128 KB |
Output is correct |
