oj.uz

Submission #1061516

# Submission time Handle Problem Language Result Execution time Memory
1061516 2024-08-16T10:25:21 Z Zicrus Ancient Books (IOI17_books) C++17
50 / 100
 111 ms 36764 KB 
#include <bits/stdc++.h>
#include "books.h"
using namespace std;

typedef long long ll;

ll minimum_walk(vector<int> p, int s) {
    ll n = p.size();
	ll res = 0;
    for (int i = 0; i < n; i++) res += abs(p[i] - i);
    if (res == 0) return 0;

    vector<bool> vst(n);
    vector<vector<ll>> cyc;
    vector<ll> mxCyc;
    vector<ll> cycId(n);
    for (int i = 0; i < n; i++) {
        if (vst[i] || p[i] == i) continue;
        cyc.push_back(vector<ll>());
        mxCyc.push_back(i);
 
        ll cur = i;
        do {
            cyc.back().push_back(cur);
            mxCyc.back() = max(mxCyc.back(), cur);
            cycId[cur] = cyc.size()-1;
            cur = p[cur];
            vst[cur] = true;
        } while (cur != i);
    }
    ll m = cyc.size();

    vector<pair<ll, ll>> cycMM(m);
    ll allMn = n, allMx = 0;
    for (int i = 0; i < m; i++) {
        cycMM[i] = {cyc[i][0], mxCyc[i]};
        allMn = min(allMn, cycMM[i].first);
        allMx = max(allMx, cycMM[i].second);
    }
    for (int i = m-1; i >= 0; i--) {
        for (int j = i+1; j < m && cycMM[j].first < cycMM[i].second; j++) {
            if (cycMM[j].second > cycMM[i].second) {
                cycMM[i].first = cycMM[j].first = min(cycMM[i].first, cycMM[j].first);
                cycMM[i].second = cycMM[j].second = max(cycMM[i].second, cycMM[j].second);
            }
        }
    }

    ll left = s, right = s;
    ll mn = left, mx = right;
    if (p[mn] != mn) {
        mn = min(cycMM[cycId[mn]].first, mn);
        mx = max(cycMM[cycId[mn]].second, mx);
    }
    if (p[mx] != mx) {
        mn = min(cycMM[cycId[mx]].first, mn);
        mx = max(cycMM[cycId[mx]].second, mx);
    }
    left = mn; right = mx;
    while (left > allMn || right < allMx) {
        ll mn = max(0ll, left-1);
        ll mx = min(n-1, right+1);
        res += 2;
        if (p[mn] != mn) {
            mn = min(cycMM[cycId[mn]].first, mn);
            mx = max(cycMM[cycId[mn]].second, mx);
        }
        if (p[mx] != mx) {
            mn = min(cycMM[cycId[mx]].first, mn);
            mx = max(cycMM[cycId[mx]].second, mx);
        }
        left = mn; right = mx;
    }
    return res;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 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 344 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 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 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 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 344 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 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 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 0 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 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 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 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 344 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 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 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 0 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 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 95 ms 27332 KB Output is correct
31 Correct 101 ms 27324 KB Output is correct
32 Correct 61 ms 8020 KB Output is correct
33 Correct 111 ms 33272 KB Output is correct
34 Correct 93 ms 34048 KB Output is correct
35 Correct 99 ms 35744 KB Output is correct
36 Correct 96 ms 36764 KB Output is correct
37 Correct 77 ms 28860 KB Output is correct
38 Correct 77 ms 27216 KB Output is correct
39 Correct 74 ms 26960 KB Output is correct
40 Correct 79 ms 25160 KB Output is correct
41 Correct 88 ms 25220 KB Output is correct
42 Correct 92 ms 24908 KB Output is correct
43 Correct 103 ms 35832 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 1 ms 348 KB 3rd lines differ - on the 1st token, expected: '5920', found: '5922'
4 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 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 344 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 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 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 0 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 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 95 ms 27332 KB Output is correct
31 Correct 101 ms 27324 KB Output is correct
32 Correct 61 ms 8020 KB Output is correct
33 Correct 111 ms 33272 KB Output is correct
34 Correct 93 ms 34048 KB Output is correct
35 Correct 99 ms 35744 KB Output is correct
36 Correct 96 ms 36764 KB Output is correct
37 Correct 77 ms 28860 KB Output is correct
38 Correct 77 ms 27216 KB Output is correct
39 Correct 74 ms 26960 KB Output is correct
40 Correct 79 ms 25160 KB Output is correct
41 Correct 88 ms 25220 KB Output is correct
42 Correct 92 ms 24908 KB Output is correct
43 Correct 103 ms 35832 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Incorrect 1 ms 348 KB 3rd lines differ - on the 1st token, expected: '5920', found: '5922'
47 Halted 0 ms 0 KB -