oj.uz

Submission #1011939

# Submission time Handle Problem Language Result Execution time Memory
1011939 2024-07-01T11:25:05 Z c2zi6 Ancient Books (IOI17_books) C++14
100 / 100
 116 ms 27040 KB 
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define replr(i, a, b) for (int i = int(a); i <= int(b); ++i)
#define reprl(i, a, b) for (int i = int(a); i >= int(b); --i)
#define rep(i, n) for (int i = 0; i < int(n); ++i)
#define mkp(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VPI;
typedef vector<VI> VVI;
typedef vector<VVI> VVVI;
typedef vector<VPI> VVPI;
typedef pair<ll, ll> PLL;
typedef vector<ll> VL;
typedef vector<PLL> VPL;
typedef vector<VL> VVL;
typedef vector<VVL> VVVL;
typedef vector<VPL> VVPL;
template<class T> T setmax(T& a, T b) {if (a < b) return a = b; return a;}
template<class T> T setmin(T& a, T b) {if (a < b) return a; return a = b;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<class T>
using indset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include "books.h"

VI L, R, C;

void extend(int& l, int& r) {
    int ll = min(L[C[l]], L[C[r]]);
    int rr = max(R[C[l]], R[C[r]]);
    while (ll < l || r < rr) {
        if (ll < l) {
            l--;
            setmin(ll, L[C[l]]);
            setmax(rr, R[C[l]]);
        } else if (r < rr) {
            r++;
            setmin(ll, L[C[r]]);
            setmax(rr, R[C[r]]);
        }
    }
}

ll minimum_walk(VI p, int s) {
    int n = p.size();
    C = VI(n, -1);
    int c = 0;
    ll ans = 0;
    int entl = +2e9, entr = -2e9;
    rep(i, n) if (C[i] == -1) {
        int u = i;
        int l = +2e9, r = -2e9;
        do {
            C[u] = c;
            setmin(l, u);
            setmax(r, u);
            ans += abs(p[u]-u);
            u = p[u];
        } while (u != i);
        L.pb(l);
        R.pb(r);
        if (i != p[i]) {
            setmin(entl, l);
            setmax(entr, r);
        }
        c++;
    }

    int l = s;
    int r = s;
    while (true) {
        extend(l, r);
        int nl, nr;

        bool ardyoq = false;
        int cr = 0;
        int maxr = r;
        replr(i, r+1, entr) {
            if (i > maxr) cr += 2;
            setmax(maxr, R[C[i]]);
            if (L[C[i]] < s) {
                nr = i;
                ardyoq = true;
                break;
            }
        }
        int cl = 0;
        int minl = l;
        reprl(i, l-1, entl) {
            if (i < minl) cl += 2;
            setmin(minl, L[C[i]]);
            if (R[C[i]] > s) {
                nl = i;
                ardyoq = true;
                break;
            }
        }
        if (!ardyoq) {
            ans += cl + cr;
            break;
        }
        ans += min(cl, cr);
        l = nl;
        r = nr;
    }
    return ans;
}

Compilation message

books.cpp: In function 'll minimum_walk(VI, int)':
books.cpp:112:11: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized]
  112 |         r = nr;
      |         ~~^~~~
books.cpp:111:11: warning: 'nl' may be used uninitialized in this function [-Wmaybe-uninitialized]
  111 |         l = nl;
      |         ~~^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 436 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 360 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 436 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 360 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 436 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 436 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 360 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 436 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 88 ms 17860 KB Output is correct
31 Correct 87 ms 17972 KB Output is correct
32 Correct 73 ms 26032 KB Output is correct
33 Correct 72 ms 24428 KB Output is correct
34 Correct 75 ms 25544 KB Output is correct
35 Correct 85 ms 27040 KB Output is correct
36 Correct 78 ms 20328 KB Output is correct
37 Correct 71 ms 18236 KB Output is correct
38 Correct 66 ms 17748 KB Output is correct
39 Correct 73 ms 17856 KB Output is correct
40 Correct 78 ms 17768 KB Output is correct
41 Correct 83 ms 17744 KB Output is correct
42 Correct 86 ms 17648 KB Output is correct
43 Correct 78 ms 24436 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 388 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 376 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 440 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 436 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 356 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 360 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 436 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 88 ms 17860 KB Output is correct
31 Correct 87 ms 17972 KB Output is correct
32 Correct 73 ms 26032 KB Output is correct
33 Correct 72 ms 24428 KB Output is correct
34 Correct 75 ms 25544 KB Output is correct
35 Correct 85 ms 27040 KB Output is correct
36 Correct 78 ms 20328 KB Output is correct
37 Correct 71 ms 18236 KB Output is correct
38 Correct 66 ms 17748 KB Output is correct
39 Correct 73 ms 17856 KB Output is correct
40 Correct 78 ms 17768 KB Output is correct
41 Correct 83 ms 17744 KB Output is correct
42 Correct 86 ms 17648 KB Output is correct
43 Correct 78 ms 24436 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 344 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 388 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 344 KB Output is correct
53 Correct 1 ms 344 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 376 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 0 ms 348 KB Output is correct
59 Correct 0 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 1 ms 348 KB Output is correct
62 Correct 1 ms 440 KB Output is correct
63 Correct 0 ms 348 KB Output is correct
64 Correct 76 ms 24756 KB Output is correct
65 Correct 87 ms 24292 KB Output is correct
66 Correct 75 ms 18256 KB Output is correct
67 Correct 68 ms 18000 KB Output is correct
68 Correct 8 ms 2392 KB Output is correct
69 Correct 7 ms 2244 KB Output is correct
70 Correct 7 ms 2652 KB Output is correct
71 Correct 7 ms 3072 KB Output is correct
72 Correct 8 ms 3032 KB Output is correct
73 Correct 13 ms 2140 KB Output is correct
74 Correct 85 ms 23872 KB Output is correct
75 Correct 87 ms 23832 KB Output is correct
76 Correct 85 ms 23720 KB Output is correct
77 Correct 84 ms 23736 KB Output is correct
78 Correct 78 ms 23856 KB Output is correct
79 Correct 82 ms 23728 KB Output is correct
80 Correct 75 ms 25516 KB Output is correct
81 Correct 73 ms 21604 KB Output is correct
82 Correct 88 ms 21420 KB Output is correct
83 Correct 93 ms 20848 KB Output is correct
84 Correct 94 ms 20764 KB Output is correct
85 Correct 85 ms 19168 KB Output is correct
86 Correct 79 ms 17952 KB Output is correct
87 Correct 92 ms 24260 KB Output is correct
88 Correct 93 ms 23984 KB Output is correct
89 Correct 116 ms 21176 KB Output is correct
90 Correct 82 ms 17652 KB Output is correct
91 Correct 78 ms 17592 KB Output is correct
92 Correct 102 ms 17456 KB Output is correct