oj.uz

Submission #998571

# Submission time Handle Problem Language Result Execution time Memory
998571 2024-06-14T08:39:52 Z bachhoangxuan Ancient Books (IOI17_books) C++17
100 / 100
 101 ms 26620 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn=1e6+5;
int f[maxn],lt[maxn],rt[maxn],L,R;

void g(int &l,int &r){
    int cl=min(lt[f[r]],lt[f[l]]),cr=max(rt[f[r]],rt[f[l]]);
    while(l>cl || r<cr){
        if(l>cl){
            cl=min(cl,lt[f[--l]]);
            cr=max(cr,rt[f[l]]);
        }
        else{
            cl=min(cl,lt[f[++r]]);
            cr=max(cr,rt[f[r]]);
        }
    }
}

long long minimum_walk(std::vector<int> p, int s) {
    long long ans=0;
    int n=(int)p.size(),cnt=0;
    L=s,R=s;
    for(int i=0;i<n;i++){
        if(!f[i]){
            cnt++;
            int u=i,mn=i,mx=i;
            while(!f[u]){
                f[u]=cnt;
                mn=min(mn,u);
                mx=max(mx,u);
                u=p[u];
            }
            lt[cnt]=mn;
            rt[cnt]=mx;
            if(p[i]!=i) L=min(L,mn),R=max(R,mx);
        }
        ans+=abs(i-p[i]);
    }
    int l=s,r=s;
    while(true){
        g(l,r);
        int al=l,ar=r,bl=l,br=r,ac=0,bc=0;
        while(al>L && ar==r) g(--al,ar),ac+=2;
        while(br<R && bl==l) g(bl,++br),bc+=2;
        //cout << al << ' ' << ar << ' ' << bl << ' ' << br << '\n';
        if(ar==r){ans+=ac+bc;break;}
        ans+=min(ac,bc);l=al,r=ar;
    }
    return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 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 0 ms 348 KB Output is correct
6 Correct 0 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 0 ms 348 KB Output is correct
12 Correct 0 ms 348 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 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 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 0 ms 348 KB Output is correct
6 Correct 0 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 0 ms 348 KB Output is correct
12 Correct 0 ms 348 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 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 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 348 KB Output is correct
2 Correct 1 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 0 ms 348 KB Output is correct
6 Correct 0 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 0 ms 348 KB Output is correct
12 Correct 0 ms 348 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 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 101 ms 18816 KB Output is correct
31 Correct 100 ms 18772 KB Output is correct
32 Correct 83 ms 26620 KB Output is correct
33 Correct 79 ms 24148 KB Output is correct
34 Correct 84 ms 24144 KB Output is correct
35 Correct 83 ms 23120 KB Output is correct
36 Correct 81 ms 20828 KB Output is correct
37 Correct 79 ms 19064 KB Output is correct
38 Correct 79 ms 18768 KB Output is correct
39 Correct 73 ms 18812 KB Output is correct
40 Correct 83 ms 18772 KB Output is correct
41 Correct 87 ms 19024 KB Output is correct
42 Correct 83 ms 18808 KB Output is correct
43 Correct 78 ms 24660 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 360 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 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 440 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 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 444 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 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 0 ms 348 KB Output is correct
6 Correct 0 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 0 ms 348 KB Output is correct
12 Correct 0 ms 348 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 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 101 ms 18816 KB Output is correct
31 Correct 100 ms 18772 KB Output is correct
32 Correct 83 ms 26620 KB Output is correct
33 Correct 79 ms 24148 KB Output is correct
34 Correct 84 ms 24144 KB Output is correct
35 Correct 83 ms 23120 KB Output is correct
36 Correct 81 ms 20828 KB Output is correct
37 Correct 79 ms 19064 KB Output is correct
38 Correct 79 ms 18768 KB Output is correct
39 Correct 73 ms 18812 KB Output is correct
40 Correct 83 ms 18772 KB Output is correct
41 Correct 87 ms 19024 KB Output is correct
42 Correct 83 ms 18808 KB Output is correct
43 Correct 78 ms 24660 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 360 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 440 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 0 ms 348 KB Output is correct
56 Correct 1 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 0 ms 444 KB Output is correct
62 Correct 0 ms 348 KB Output is correct
63 Correct 1 ms 348 KB Output is correct
64 Correct 77 ms 24552 KB Output is correct
65 Correct 80 ms 25168 KB Output is correct
66 Correct 72 ms 19024 KB Output is correct
67 Correct 75 ms 19060 KB Output is correct
68 Correct 8 ms 2392 KB Output is correct
69 Correct 8 ms 2136 KB Output is correct
70 Correct 8 ms 2396 KB Output is correct
71 Correct 9 ms 2652 KB Output is correct
72 Correct 8 ms 2652 KB Output is correct
73 Correct 7 ms 2140 KB Output is correct
74 Correct 85 ms 24144 KB Output is correct
75 Correct 86 ms 24144 KB Output is correct
76 Correct 83 ms 24400 KB Output is correct
77 Correct 78 ms 24696 KB Output is correct
78 Correct 79 ms 23636 KB Output is correct
79 Correct 79 ms 23860 KB Output is correct
80 Correct 73 ms 26608 KB Output is correct
81 Correct 80 ms 22608 KB Output is correct
82 Correct 78 ms 22644 KB Output is correct
83 Correct 78 ms 21844 KB Output is correct
84 Correct 82 ms 21072 KB Output is correct
85 Correct 76 ms 19792 KB Output is correct
86 Correct 72 ms 19284 KB Output is correct
87 Correct 82 ms 25336 KB Output is correct
88 Correct 81 ms 24400 KB Output is correct
89 Correct 83 ms 22384 KB Output is correct
90 Correct 73 ms 19064 KB Output is correct
91 Correct 79 ms 18772 KB Output is correct
92 Correct 75 ms 18928 KB Output is correct