답안 #814604

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
814604	2023-08-08T08:30:38 Z	erray	고대 책들 (IOI17_books)	C++17	100 / 100	182 ms	26724 KB

books

#include "books.h"
//author: erray
#include <bits/stdc++.h>

using namespace std;
 
#ifdef DEBUG
  #include "/home/ioi/codes/debug.h"
#else
  #define debug(...) (void) 37
#endif


long long minimum_walk(std::vector<int> P, int s) {
  int N = int(P.size());
	//assert(s == 0);
  long long res = 0;
  int start = 0, end = N - 1;
  while (start < N && P[start] == start) {
    ++start;
  }
  while (end >= 0 && P[end] == end) {
    --end;
  }
  if (start == N) {
    return 0;
  }
  //res += 2 * start;
  vector<int> upd(N);
  for (int i = 0; i < N; ++i) {
    int L = P[i], R = i;
    if (L > R) {
      swap(L, R);
    }
    upd[L] += 1;
    upd[R] -= 1;  
    res += (R - L);
  }
  for (int i = 0; i < N - 1; ++i) {
    upd[i + 1] += upd[i];
  }
  for (int i = start; i < end; ++i) {
    if (upd[i] == 0) {
      res += 2;
    }
  }
  debug(upd, res);
  vector<int> L(N, -1), R(N);
  for (int i = 0; i < N; ++i) {
    if (L[i] == -1) {
      int v = i;
      L[i] = R[i] = i;
      do {
        v = P[v];
        L[i] = min(L[i], v);
        R[i] = max(R[i], v);
      } while (v != i);
      do {
        v = P[v];
        L[v] = L[i];
        R[v] = R[i];
      } while (v != i);
    }
  }
  debug(start, end, res, L, R);
  
  if (s <= start) {
    res += (start - s) * 2;
  } else if (end <= s) {
    res += (s - end) * 2;
  } else {
    auto Expand = [&](int& l, int& r) {
      int go_l = min(L[l], L[r]);
      int go_r = max(R[l], R[r]);
      while (go_l < l || go_r > r) {
        while (go_l < l) {
          --l;
          go_l = min(L[l], go_l);
          go_r = max(R[l], go_r);
        }
        while (go_r > r) {
          ++r;
          go_l = min(L[r], go_l);
          go_r = max(R[r], go_r);
        }
      }
    };
    int l = s, r = s;    
    Expand(l, r);
    int add = 0;
    while (upd[r] != 0) {
      --l, ++r;
      ++add;
      Expand(l, r);
    }
    res += 2 * add;
  } 
  return res;
}

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	300 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	296 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	1 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	300 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	296 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	1 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	300 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	300 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct

Subtask #3
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	300 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	296 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	1 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	300 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	300 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	155 ms	20204 KB	Output is correct
31	Correct	182 ms	20248 KB	Output is correct
32	Correct	80 ms	8428 KB	Output is correct
33	Correct	106 ms	20172 KB	Output is correct
34	Correct	98 ms	20200 KB	Output is correct
35	Correct	96 ms	20156 KB	Output is correct
36	Correct	96 ms	20196 KB	Output is correct
37	Correct	101 ms	20200 KB	Output is correct
38	Correct	100 ms	20348 KB	Output is correct
39	Correct	99 ms	20204 KB	Output is correct
40	Correct	101 ms	20132 KB	Output is correct
41	Correct	126 ms	20248 KB	Output is correct
42	Correct	133 ms	20336 KB	Output is correct
43	Correct	96 ms	20248 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	296 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	304 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	304 KB	Output is correct

Subtask #5
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	300 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	300 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	296 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	300 KB	Output is correct
11	Correct	1 ms	296 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	300 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	300 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	1 ms	212 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	155 ms	20204 KB	Output is correct
31	Correct	182 ms	20248 KB	Output is correct
32	Correct	80 ms	8428 KB	Output is correct
33	Correct	106 ms	20172 KB	Output is correct
34	Correct	98 ms	20200 KB	Output is correct
35	Correct	96 ms	20156 KB	Output is correct
36	Correct	96 ms	20196 KB	Output is correct
37	Correct	101 ms	20200 KB	Output is correct
38	Correct	100 ms	20348 KB	Output is correct
39	Correct	99 ms	20204 KB	Output is correct
40	Correct	101 ms	20132 KB	Output is correct
41	Correct	126 ms	20248 KB	Output is correct
42	Correct	133 ms	20336 KB	Output is correct
43	Correct	96 ms	20248 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	0 ms	212 KB	Output is correct
46	Correct	1 ms	212 KB	Output is correct
47	Correct	1 ms	296 KB	Output is correct
48	Correct	1 ms	212 KB	Output is correct
49	Correct	1 ms	212 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	1 ms	212 KB	Output is correct
53	Correct	1 ms	304 KB	Output is correct
54	Correct	1 ms	212 KB	Output is correct
55	Correct	1 ms	212 KB	Output is correct
56	Correct	1 ms	212 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	1 ms	212 KB	Output is correct
59	Correct	1 ms	212 KB	Output is correct
60	Correct	1 ms	212 KB	Output is correct
61	Correct	1 ms	212 KB	Output is correct
62	Correct	1 ms	212 KB	Output is correct
63	Correct	1 ms	304 KB	Output is correct
64	Correct	91 ms	26592 KB	Output is correct
65	Correct	89 ms	26600 KB	Output is correct
66	Correct	92 ms	26600 KB	Output is correct
67	Correct	93 ms	26596 KB	Output is correct
68	Correct	10 ms	2772 KB	Output is correct
69	Correct	9 ms	2816 KB	Output is correct
70	Correct	9 ms	2748 KB	Output is correct
71	Correct	9 ms	2816 KB	Output is correct
72	Correct	9 ms	2812 KB	Output is correct
73	Correct	10 ms	2772 KB	Output is correct
74	Correct	91 ms	26596 KB	Output is correct
75	Correct	94 ms	26596 KB	Output is correct
76	Correct	93 ms	26600 KB	Output is correct
77	Correct	96 ms	26596 KB	Output is correct
78	Correct	104 ms	26600 KB	Output is correct
79	Correct	93 ms	26596 KB	Output is correct
80	Correct	74 ms	14820 KB	Output is correct
81	Correct	95 ms	26604 KB	Output is correct
82	Correct	83 ms	26608 KB	Output is correct
83	Correct	96 ms	26600 KB	Output is correct
84	Correct	93 ms	26600 KB	Output is correct
85	Correct	101 ms	26596 KB	Output is correct
86	Correct	93 ms	26588 KB	Output is correct
87	Correct	97 ms	26612 KB	Output is correct
88	Correct	93 ms	26588 KB	Output is correct
89	Correct	95 ms	26596 KB	Output is correct
90	Correct	92 ms	26600 KB	Output is correct
91	Correct	97 ms	26612 KB	Output is correct
92	Correct	102 ms	26724 KB	Output is correct

답안 #814604

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 10.0 / 10.0

Subtask #3 28.0 / 28.0

Subtask #4 20.0 / 20.0

Subtask #5 30.0 / 30.0

Subtask #1
12.0 / 12.0

Subtask #2
10.0 / 10.0

Subtask #3
28.0 / 28.0

Subtask #4
20.0 / 20.0

Subtask #5
30.0 / 30.0