oj.uz

Submission #290685

# Submission time Handle Problem Language Result Execution time Memory
290685 2020-09-04T10:28:49 Z SamAnd Ancient Books (IOI17_books) C++17
50 / 100
 195 ms 19832 KB 
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
typedef long long ll;
const int N = 1000006;

int n;

int bfs(vector<int> p, int s)
{
    for (int i = 0; i < n; ++i)
        ++p[i];
    map<pair<vector<int>, pair<int, int> >, int> mp;
    deque<pair<vector<int>, pair<int, int> > > q;
    q.push_back(m_p(p, m_p(s, 0)));
    mp[m_p(p, m_p(s, 0))] = 0;
    while (1)
    {
        pair<vector<int>, pair<int, int> > t = q.front();
        q.pop_front();
        bool z = true;
        if (t.se.fi != s)
            z = false;
        for (int i = 0; i < n; ++i)
        {
            if (t.fi[i] != i + 1)
            {
                z = false;
                break;
            }
        }
        if (z)
            return mp[t];

        pair<vector<int>, pair<int, int> > h;

        h = t;
        if (h.se.fi != n - 1)
        {
            ++h.se.fi;
            if (mp.find(h) == mp.end())
            {
                mp[h] = mp[t] + 1;
                q.push_back(h);
            }
        }

        h = t;
        if (h.se.fi != 0)
        {
            --h.se.fi;
            if (mp.find(h) == mp.end())
            {
                mp[h] = mp[t] + 1;
                q.push_back(h);
            }
        }

        h = t;
        swap(h.se.se, h.fi[h.se.fi]);
        if (mp.find(h) == mp.end())
        {
            mp[h] = mp[t];
            q.push_front(h);
        }
    }
}

int q[N];
bool s[N];
long long minimum_walk(std::vector<int> p, int s0)
{
    n = sz(p);
    ll ans = 0;
    for (int i = 0; i < n; ++i)
    {
        ans += abs(i - p[i]);
    }
    for (int i = 0; i < n; ++i)
    {
        q[min(i, p[i])]++;
        q[max(i, p[i])]--;
    }
    for (int i = n - 1; i >= 0; --i)
    {
        s[i] = (s[i + 1] || (i != p[i]));
    }
    for (int i = 0; i < n; ++i)
    {
        q[i] += q[i - 1];
        if (!q[i])
        {
            if (s[i + 1])
                ans += 2;
        }
    }
    //printf("%d\n", bfs(p, s0));
    return ans;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 416 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 416 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 416 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 175 ms 13048 KB Output is correct
31 Correct 175 ms 19704 KB Output is correct
32 Correct 150 ms 19704 KB Output is correct
33 Correct 153 ms 19704 KB Output is correct
34 Correct 153 ms 19704 KB Output is correct
35 Correct 150 ms 19704 KB Output is correct
36 Correct 155 ms 19764 KB Output is correct
37 Correct 152 ms 19704 KB Output is correct
38 Correct 154 ms 19704 KB Output is correct
39 Correct 159 ms 19768 KB Output is correct
40 Correct 169 ms 19832 KB Output is correct
41 Correct 176 ms 19704 KB Output is correct
42 Correct 195 ms 19832 KB Output is correct
43 Correct 148 ms 19704 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 1 ms 256 KB Output is correct
18 Correct 1 ms 416 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 175 ms 13048 KB Output is correct
31 Correct 175 ms 19704 KB Output is correct
32 Correct 150 ms 19704 KB Output is correct
33 Correct 153 ms 19704 KB Output is correct
34 Correct 153 ms 19704 KB Output is correct
35 Correct 150 ms 19704 KB Output is correct
36 Correct 155 ms 19764 KB Output is correct
37 Correct 152 ms 19704 KB Output is correct
38 Correct 154 ms 19704 KB Output is correct
39 Correct 159 ms 19768 KB Output is correct
40 Correct 169 ms 19832 KB Output is correct
41 Correct 176 ms 19704 KB Output is correct
42 Correct 195 ms 19832 KB Output is correct
43 Correct 148 ms 19704 KB Output is correct
44 Incorrect 1 ms 384 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -