oj.uz

Submission #1061030

# Submission time Handle Problem Language Result Execution time Memory
1061030 2024-08-16T05:44:57 Z onbert Ancient Books (IOI17_books) C++17
50 / 100
 108 ms 43200 KB 
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int maxn = 1e6 + 5, INF = 1e9;
int p[maxn];
int vis[maxn];
bool taken[maxn];
vector<pair<int,int>> vec = {{-1, -1}};
int l, r;

void expand(int L, int R) {
    vector<int> add;
    while (l > L) {
        l--;
        if (p[l]!=l) add.push_back(vis[l]);
    }
    while (r<R) {
        r++;
        if (p[r]!=r) add.push_back(vis[r]);
    }
    for (int i:add) expand(vec[i].first, vec[i].second);
}

int minimum_walk(vector<int32_t> P, int32_t s) {
    int n = P.size();
    for (int i=0;i<n;i++) p[i] = P[i];
    for (int i=0;i<n;i++) vis[i] = false;
    int ans = 0;
    int cnt = 0;
    for (int i=0;i<n;i++) if (!vis[i]) {
        if (p[i]==i && i==s) {
            cnt++;
            vis[i] = cnt;
            vec.push_back({s, s});
        }
        if (p[i]==i) continue;
        int u = i;
        pair<int,int> val = {u, u};
        cnt++;
        while (true) {
            vis[u] = cnt;
            val.first = min(u, val.first);
            val.second = max(u, val.second);
            int v = p[u];
            ans += abs(v-u);
            if (v==i) break;
            u = v;
        }
        vec.push_back(val);
    }
    l = s, r = s;
    expand(vec[vis[s]].first, vec[vis[s]].second);
    bool done = false;
    while (l>0 || r<n-1) {
        for (int dist = 1; ; dist++) {
            int L = l-dist, R = r + dist;
            if (L<0 && R>=n) {done = true; break;}
            if (L>=0 && p[L]!=L) {
                ans += dist*2;
                expand(L, r);
                break;
            }
            if (R<n && p[R]!=R) {
                ans += dist*2;
                expand(l, R);
                break;
            }
        }
        if (done) break;
    }
    return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4440 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4440 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4440 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4440 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4540 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4440 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4440 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4540 KB Output is correct
30 Correct 99 ms 40408 KB Output is correct
31 Correct 108 ms 41404 KB Output is correct
32 Correct 75 ms 31312 KB Output is correct
33 Correct 91 ms 36804 KB Output is correct
34 Correct 93 ms 36960 KB Output is correct
35 Correct 94 ms 36544 KB Output is correct
36 Correct 99 ms 36032 KB Output is correct
37 Correct 85 ms 31948 KB Output is correct
38 Correct 84 ms 31464 KB Output is correct
39 Correct 83 ms 31572 KB Output is correct
40 Correct 88 ms 32336 KB Output is correct
41 Correct 96 ms 37840 KB Output is correct
42 Correct 101 ms 36716 KB Output is correct
43 Correct 105 ms 43200 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 4440 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3324'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4440 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4440 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 0 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4540 KB Output is correct
30 Correct 99 ms 40408 KB Output is correct
31 Correct 108 ms 41404 KB Output is correct
32 Correct 75 ms 31312 KB Output is correct
33 Correct 91 ms 36804 KB Output is correct
34 Correct 93 ms 36960 KB Output is correct
35 Correct 94 ms 36544 KB Output is correct
36 Correct 99 ms 36032 KB Output is correct
37 Correct 85 ms 31948 KB Output is correct
38 Correct 84 ms 31464 KB Output is correct
39 Correct 83 ms 31572 KB Output is correct
40 Correct 88 ms 32336 KB Output is correct
41 Correct 96 ms 37840 KB Output is correct
42 Correct 101 ms 36716 KB Output is correct
43 Correct 105 ms 43200 KB Output is correct
44 Incorrect 1 ms 4440 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3324'
45 Halted 0 ms 0 KB -