oj.uz

Submission #353360

# Submission time Handle Problem Language Result Execution time Memory
353360 2021-01-21T07:25:04 Z dolphingarlic Ancient Books (IOI17_books) C++14
100 / 100
 228 ms 77548 KB 
#include "books.h"

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

int crit_l, crit_r;
int cmp[1000000], cmp_l[1000000], cmp_r[1000000];

void extend(int &l, int &r) {
    int ext_l = min(cmp_l[cmp[l]], cmp_l[cmp[r]]);
    int ext_r = max(cmp_r[cmp[l]], cmp_r[cmp[r]]);
    while (l != ext_l || r != ext_r) {
        if (l != ext_l) {
            l--;
            ext_l = min(ext_l, cmp_l[cmp[l]]);
            ext_r = max(ext_r, cmp_r[cmp[l]]);
        } else {
            r++;
            ext_l = min(ext_l, cmp_l[cmp[r]]);
            ext_r = max(ext_r, cmp_r[cmp[r]]);
        }
    }
}

ll compute(int l, int r) {
    extend(l, r);
    if (l == crit_l && r == crit_r) return 0;
    if (l == crit_l) return compute(l, r + 1) + 2;
    if (r == crit_r) return compute(l - 1, r) + 2;

    ll to_l = 2;
    int nl = l - 1, nr = r, tl = l, tr = r + 1;
    extend(nl, nr), extend(tl, tr);
    while (nl != crit_l && nr < tr) {
        to_l += 2;
        nl--;
        extend(nl, nr);
    }
    if (nr < tr) return to_l + compute(nl, nr);

    ll to_r = 2;
    nl = l, nr = r + 1, tl = l - 1, tr = r;
    extend(nl, nr), extend(tl, tr);
    while (nl > tl) {
        to_r += 2;
        nr++;
        extend(nl, nr);
    }
    return min(to_l, to_r) + compute(nl, nr);
}

ll minimum_walk(vector<int> p, int s) {
    int n = p.size(), cmp_cnt = 0;
    fill(cmp, cmp + n, -1);
    crit_l = s, crit_r = s;
    ll intra = 0;
    for (int i = 0; i < n; i++) {
        intra += abs(p[i] - i);
        if (cmp[i] == -1) {
            int curr = i;
            cmp_l[cmp_cnt] = cmp_r[cmp_cnt] = i;
            do {
                cmp[curr] = cmp_cnt;
                cmp_r[cmp_cnt] = max(cmp_r[cmp_cnt], curr);
                curr = p[curr];
            } while (curr != i);
            if (i != p[i]) {
                crit_l = min(crit_l, cmp_l[cmp_cnt]);
                crit_r = max(crit_r, cmp_r[cmp_cnt]);
            }
            cmp_cnt++;
        }
    }
    return intra + compute(s, s);
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 364 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 213 ms 12012 KB Output is correct
31 Correct 195 ms 12140 KB Output is correct
32 Correct 133 ms 19948 KB Output is correct
33 Correct 176 ms 77548 KB Output is correct
34 Correct 185 ms 77548 KB Output is correct
35 Correct 228 ms 59116 KB Output is correct
36 Correct 143 ms 26604 KB Output is correct
37 Correct 130 ms 13036 KB Output is correct
38 Correct 134 ms 12268 KB Output is correct
39 Correct 133 ms 12268 KB Output is correct
40 Correct 140 ms 12140 KB Output is correct
41 Correct 143 ms 12012 KB Output is correct
42 Correct 144 ms 12140 KB Output is correct
43 Correct 135 ms 17900 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 213 ms 12012 KB Output is correct
31 Correct 195 ms 12140 KB Output is correct
32 Correct 133 ms 19948 KB Output is correct
33 Correct 176 ms 77548 KB Output is correct
34 Correct 185 ms 77548 KB Output is correct
35 Correct 228 ms 59116 KB Output is correct
36 Correct 143 ms 26604 KB Output is correct
37 Correct 130 ms 13036 KB Output is correct
38 Correct 134 ms 12268 KB Output is correct
39 Correct 133 ms 12268 KB Output is correct
40 Correct 140 ms 12140 KB Output is correct
41 Correct 143 ms 12012 KB Output is correct
42 Correct 144 ms 12140 KB Output is correct
43 Correct 135 ms 17900 KB Output is correct
44 Correct 1 ms 364 KB Output is correct
45 Correct 1 ms 364 KB Output is correct
46 Correct 1 ms 364 KB Output is correct
47 Correct 1 ms 364 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 1 ms 364 KB Output is correct
50 Correct 1 ms 364 KB Output is correct
51 Correct 1 ms 364 KB Output is correct
52 Correct 1 ms 364 KB Output is correct
53 Correct 1 ms 364 KB Output is correct
54 Correct 1 ms 364 KB Output is correct
55 Correct 1 ms 364 KB Output is correct
56 Correct 1 ms 364 KB Output is correct
57 Correct 1 ms 364 KB Output is correct
58 Correct 1 ms 364 KB Output is correct
59 Correct 1 ms 364 KB Output is correct
60 Correct 1 ms 364 KB Output is correct
61 Correct 1 ms 364 KB Output is correct
62 Correct 1 ms 364 KB Output is correct
63 Correct 1 ms 364 KB Output is correct
64 Correct 134 ms 17900 KB Output is correct
65 Correct 166 ms 18416 KB Output is correct
66 Correct 128 ms 12268 KB Output is correct
67 Correct 135 ms 12268 KB Output is correct
68 Correct 15 ms 1772 KB Output is correct
69 Correct 13 ms 1644 KB Output is correct
70 Correct 13 ms 1772 KB Output is correct
71 Correct 14 ms 2048 KB Output is correct
72 Correct 14 ms 2156 KB Output is correct
73 Correct 15 ms 1516 KB Output is correct
74 Correct 154 ms 41452 KB Output is correct
75 Correct 190 ms 47468 KB Output is correct
76 Correct 143 ms 17772 KB Output is correct
77 Correct 165 ms 17900 KB Output is correct
78 Correct 167 ms 17004 KB Output is correct
79 Correct 140 ms 17004 KB Output is correct
80 Correct 133 ms 19936 KB Output is correct
81 Correct 154 ms 47340 KB Output is correct
82 Correct 158 ms 47428 KB Output is correct
83 Correct 144 ms 17772 KB Output is correct
84 Correct 134 ms 16492 KB Output is correct
85 Correct 156 ms 13932 KB Output is correct
86 Correct 128 ms 12652 KB Output is correct
87 Correct 179 ms 33260 KB Output is correct
88 Correct 147 ms 26252 KB Output is correct
89 Correct 145 ms 19564 KB Output is correct
90 Correct 132 ms 12356 KB Output is correct
91 Correct 132 ms 12140 KB Output is correct
92 Correct 138 ms 12012 KB Output is correct