Submission #598720

# Submission time Handle Problem Language Result Execution time Memory
598720 2022-07-18T19:33:32 Z piOOE Rope (JOI17_rope) C++17
45 / 100
2500 ms 4156 KB
#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;
}
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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 -
# Verdict Execution time Memory 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 -
# Verdict Execution time Memory 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 -