답안 #598720

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
598720	2022-07-18T19:33:32 Z	piOOE	Rope (JOI17_rope)	C++17	45 / 100	2500 ms	4156 KB

rope

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

const int N = 100000, M = 10;

int a[N], ans[M];
int pref[2][2][N], suf[2][2][N]; // {first or second, left or right}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  memset(ans, 0x3f, sizeof(ans));
  int n, m;
  cin >> n >> m;
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
    --a[i];
  }
  for (int c1 = 0; c1 < m; ++c1) {
    for (int c2 = 0; c2 < m; ++c2) {
      memset(pref, 0x3f, sizeof(pref)), memset(suf, 0x3f, sizeof(suf));
      int c[2] = {c1, c2};

      pref[0][0][0] = pref[0][1][0] = a[0] != c[0];
      pref[1][0][0] = pref[1][1][0] = a[0] != c[1];
      for (int i = 1; i < n; ++i) {
        pref[1][1][i] = (a[i] != c[1]) + pref[1][0][i - 1];
        pref[1][0][i] = (a[i] != c[1]) + min(pref[1][1][i - 1], pref[0][0][i - 1]);
        pref[0][1][i] = (a[i] != c[0]) + min(pref[0][0][i - 1], pref[1][1][i - 1]);
        pref[0][0][i] = (a[i] != c[0]) + pref[0][1][i - 1];
      }

      suf[0][0][n - 1] = suf[0][1][n - 1] = a[n - 1] != c[0];
      suf[1][0][n - 1] = suf[1][1][n - 1] = a[n - 1] != c[1];
      for (int i = n - 2; i > -1; --i) {
        suf[1][1][i] = (a[i] != c[1]) + suf[1][0][i + 1];
        suf[1][0][i] = (a[i] != c[1]) + min(suf[1][1][i + 1], suf[0][0][i + 1]);
        suf[0][1][i] = (a[i] != c[0]) + min(suf[0][0][i + 1], suf[1][1][i + 1]);
        suf[0][0][i] = (a[i] != c[0]) + suf[0][1][i + 1];
      }

      for (int i = 0; i < n - 1; ++i) {
        int now = pref[0][0][i] + suf[1][1][i + 1];
        ans[c1] = min(ans[c1], now);
        ans[c2] = min(ans[c2], now);
      }
    }
  }
  for (int i = 0; i < m; ++i) {
    cout << ans[i] << "\n";
  }
  return 0;
}

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	3412 KB	Output is correct
2	Correct	11 ms	3456 KB	Output is correct
3	Correct	10 ms	3452 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	3 ms	3412 KB	Output is correct
6	Correct	9 ms	3460 KB	Output is correct
7	Correct	7 ms	3412 KB	Output is correct
8	Correct	6 ms	3452 KB	Output is correct
9	Correct	4 ms	3412 KB	Output is correct
10	Correct	4 ms	3412 KB	Output is correct
11	Correct	14 ms	3524 KB	Output is correct
12	Correct	10 ms	3412 KB	Output is correct
13	Correct	7 ms	3404 KB	Output is correct
14	Correct	3 ms	3412 KB	Output is correct
15	Correct	2 ms	3412 KB	Output is correct
16	Correct	2 ms	3412 KB	Output is correct
17	Correct	8 ms	3452 KB	Output is correct
18	Correct	8 ms	3412 KB	Output is correct
19	Correct	4 ms	3412 KB	Output is correct
20	Correct	3 ms	3412 KB	Output is correct
21	Correct	2 ms	3412 KB	Output is correct
22	Correct	2 ms	3412 KB	Output is correct
23	Correct	3 ms	3412 KB	Output is correct
24	Correct	2 ms	3412 KB	Output is correct
25	Correct	2 ms	3412 KB	Output is correct
26	Correct	2 ms	3348 KB	Output is correct

Subtask #2
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	3412 KB	Output is correct
2	Correct	11 ms	3456 KB	Output is correct
3	Correct	10 ms	3452 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	3 ms	3412 KB	Output is correct
6	Correct	9 ms	3460 KB	Output is correct
7	Correct	7 ms	3412 KB	Output is correct
8	Correct	6 ms	3452 KB	Output is correct
9	Correct	4 ms	3412 KB	Output is correct
10	Correct	4 ms	3412 KB	Output is correct
11	Correct	14 ms	3524 KB	Output is correct
12	Correct	10 ms	3412 KB	Output is correct
13	Correct	7 ms	3404 KB	Output is correct
14	Correct	3 ms	3412 KB	Output is correct
15	Correct	2 ms	3412 KB	Output is correct
16	Correct	2 ms	3412 KB	Output is correct
17	Correct	8 ms	3452 KB	Output is correct
18	Correct	8 ms	3412 KB	Output is correct
19	Correct	4 ms	3412 KB	Output is correct
20	Correct	3 ms	3412 KB	Output is correct
21	Correct	2 ms	3412 KB	Output is correct
22	Correct	2 ms	3412 KB	Output is correct
23	Correct	3 ms	3412 KB	Output is correct
24	Correct	2 ms	3412 KB	Output is correct
25	Correct	2 ms	3412 KB	Output is correct
26	Correct	2 ms	3348 KB	Output is correct
27	Correct	142 ms	4028 KB	Output is correct
28	Correct	30 ms	4020 KB	Output is correct
29	Correct	102 ms	4020 KB	Output is correct
30	Correct	48 ms	4020 KB	Output is correct
31	Correct	130 ms	4032 KB	Output is correct
32	Correct	29 ms	3932 KB	Output is correct
33	Correct	106 ms	4044 KB	Output is correct
34	Correct	45 ms	4024 KB	Output is correct

Subtask #3
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	3412 KB	Output is correct
2	Correct	11 ms	3456 KB	Output is correct
3	Correct	10 ms	3452 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	3 ms	3412 KB	Output is correct
6	Correct	9 ms	3460 KB	Output is correct
7	Correct	7 ms	3412 KB	Output is correct
8	Correct	6 ms	3452 KB	Output is correct
9	Correct	4 ms	3412 KB	Output is correct
10	Correct	4 ms	3412 KB	Output is correct
11	Correct	14 ms	3524 KB	Output is correct
12	Correct	10 ms	3412 KB	Output is correct
13	Correct	7 ms	3404 KB	Output is correct
14	Correct	3 ms	3412 KB	Output is correct
15	Correct	2 ms	3412 KB	Output is correct
16	Correct	2 ms	3412 KB	Output is correct
17	Correct	8 ms	3452 KB	Output is correct
18	Correct	8 ms	3412 KB	Output is correct
19	Correct	4 ms	3412 KB	Output is correct
20	Correct	3 ms	3412 KB	Output is correct
21	Correct	2 ms	3412 KB	Output is correct
22	Correct	2 ms	3412 KB	Output is correct
23	Correct	3 ms	3412 KB	Output is correct
24	Correct	2 ms	3412 KB	Output is correct
25	Correct	2 ms	3412 KB	Output is correct
26	Correct	2 ms	3348 KB	Output is correct
27	Correct	142 ms	4028 KB	Output is correct
28	Correct	30 ms	4020 KB	Output is correct
29	Correct	102 ms	4020 KB	Output is correct
30	Correct	48 ms	4020 KB	Output is correct
31	Correct	130 ms	4032 KB	Output is correct
32	Correct	29 ms	3932 KB	Output is correct
33	Correct	106 ms	4044 KB	Output is correct
34	Correct	45 ms	4024 KB	Output is correct
35	Execution timed out	2549 ms	4156 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-

Subtask #4
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	3412 KB	Output is correct
2	Correct	11 ms	3456 KB	Output is correct
3	Correct	10 ms	3452 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	3 ms	3412 KB	Output is correct
6	Correct	9 ms	3460 KB	Output is correct
7	Correct	7 ms	3412 KB	Output is correct
8	Correct	6 ms	3452 KB	Output is correct
9	Correct	4 ms	3412 KB	Output is correct
10	Correct	4 ms	3412 KB	Output is correct
11	Correct	14 ms	3524 KB	Output is correct
12	Correct	10 ms	3412 KB	Output is correct
13	Correct	7 ms	3404 KB	Output is correct
14	Correct	3 ms	3412 KB	Output is correct
15	Correct	2 ms	3412 KB	Output is correct
16	Correct	2 ms	3412 KB	Output is correct
17	Correct	8 ms	3452 KB	Output is correct
18	Correct	8 ms	3412 KB	Output is correct
19	Correct	4 ms	3412 KB	Output is correct
20	Correct	3 ms	3412 KB	Output is correct
21	Correct	2 ms	3412 KB	Output is correct
22	Correct	2 ms	3412 KB	Output is correct
23	Correct	3 ms	3412 KB	Output is correct
24	Correct	2 ms	3412 KB	Output is correct
25	Correct	2 ms	3412 KB	Output is correct
26	Correct	2 ms	3348 KB	Output is correct
27	Correct	142 ms	4028 KB	Output is correct
28	Correct	30 ms	4020 KB	Output is correct
29	Correct	102 ms	4020 KB	Output is correct
30	Correct	48 ms	4020 KB	Output is correct
31	Correct	130 ms	4032 KB	Output is correct
32	Correct	29 ms	3932 KB	Output is correct
33	Correct	106 ms	4044 KB	Output is correct
34	Correct	45 ms	4024 KB	Output is correct
35	Execution timed out	2549 ms	4156 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	3412 KB	Output is correct
2	Correct	11 ms	3456 KB	Output is correct
3	Correct	10 ms	3452 KB	Output is correct
4	Correct	3 ms	3404 KB	Output is correct
5	Correct	3 ms	3412 KB	Output is correct
6	Correct	9 ms	3460 KB	Output is correct
7	Correct	7 ms	3412 KB	Output is correct
8	Correct	6 ms	3452 KB	Output is correct
9	Correct	4 ms	3412 KB	Output is correct
10	Correct	4 ms	3412 KB	Output is correct
11	Correct	14 ms	3524 KB	Output is correct
12	Correct	10 ms	3412 KB	Output is correct
13	Correct	7 ms	3404 KB	Output is correct
14	Correct	3 ms	3412 KB	Output is correct
15	Correct	2 ms	3412 KB	Output is correct
16	Correct	2 ms	3412 KB	Output is correct
17	Correct	8 ms	3452 KB	Output is correct
18	Correct	8 ms	3412 KB	Output is correct
19	Correct	4 ms	3412 KB	Output is correct
20	Correct	3 ms	3412 KB	Output is correct
21	Correct	2 ms	3412 KB	Output is correct
22	Correct	2 ms	3412 KB	Output is correct
23	Correct	3 ms	3412 KB	Output is correct
24	Correct	2 ms	3412 KB	Output is correct
25	Correct	2 ms	3412 KB	Output is correct
26	Correct	2 ms	3348 KB	Output is correct
27	Correct	142 ms	4028 KB	Output is correct
28	Correct	30 ms	4020 KB	Output is correct
29	Correct	102 ms	4020 KB	Output is correct
30	Correct	48 ms	4020 KB	Output is correct
31	Correct	130 ms	4032 KB	Output is correct
32	Correct	29 ms	3932 KB	Output is correct
33	Correct	106 ms	4044 KB	Output is correct
34	Correct	45 ms	4024 KB	Output is correct
35	Execution timed out	2549 ms	4156 KB	Time limit exceeded
36	Halted	0 ms	0 KB	-

답안 #598720

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 30.0 / 30.0

Subtask #3 0 / 10.0

Subtask #4 0 / 25.0

Subtask #5 0 / 20.0

Subtask #1
15.0 / 15.0

Subtask #2
30.0 / 30.0

Subtask #3
0 / 10.0

Subtask #4
0 / 25.0

Subtask #5
0 / 20.0