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Submission #102411

# Submission time Handle Problem Language Result Execution time Memory
102411 2019-03-24T18:01:45 Z naoai Gondola (IOI14_gondola) C++14
45 / 100
 25 ms 1408 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

int valid(int n, int inputSeq[]) {
    vector<int> v(2 * n);
    for (int i = 0; i < 2 * n; ++ i)
        v[i] = inputSeq[i % n];

    sort(inputSeq, inputSeq + n);
    for (int i = 1; i < n; ++ i) {
        if (inputSeq[i] == inputSeq[i - 1])
            return 0;
    }

    if (inputSeq[0] > n)
        return 1;

    int ind = 0;
    while (ind < n && v[ind] != inputSeq[0])
        ++ ind;
    for (int i = 0; i < n; ++ i) {
        if (v[ind + i] <= n && v[ind + i] != inputSeq[0] + i)
            return 0;
    }
    return 1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    int mn = 0;
    for (int i = 0; i < n; ++ i) {
        if (gondolaSeq[i] < gondolaSeq[mn])
            mn = i;
    }

    vector<pair<int, int>> ord;
    vector<int> v(2 * n);
    v.resize(2 * n);
    for (int i = 0; i < 2 * n; ++ i)
        v[i] = gondolaSeq[i % n];

    int l = 0;
    int pst = mn - v[mn] + 1;
    if (pst < 0) pst += n;
    for (int i = pst; i <= pst + n; ++ i) {
        if (v[i] > n) {
            ord.push_back({v[i], i - mn + v[mn]});
        }
    }

    ord.push_back({n, -1});
    sort(ord.begin(), ord.end());
    for (int i = 1; i < (int)ord.size(); ++ i) {
        int val = ord[i].second;
        for (int j = ord[i - 1].first + 1; j <= ord[i].first; ++ j) {
            replacementSeq[l ++] = val;
            val = j;
        }
    }
    return l;
}

//----------------------

static const int mod = 1e9 + 9;

long long lgput (long long b, int p) {
    long long sol = 1;
    while (p > 0) {
        if (p & 1)
            sol = sol * b % mod;
        b = b * b % mod;
        p >>= 1;
    }
    return sol;
}

int countReplacement(int n, int inputSeq[])
{
    if (valid(n, inputSeq) == 0)
        return 0;

    vector<int> ord;
    for (int i = 0; i < n; ++ i) {
        if (inputSeq[i] > n) {
            ord.push_back(inputSeq[i]);
        }
    }

    ord.push_back(n);
    sort(ord.begin(), ord.end());

    long long ans = 1;
    for (int i = 1; i < (int)ord.size(); ++ i) {
        int cnt = ord[i] - 1 - ord[i - 1];
        ans = ans * lgput((int)ord.size() - i, cnt) % mod;
    }

    return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 10 ms 776 KB Output is correct
7 Correct 19 ms 1408 KB Output is correct
8 Correct 14 ms 1152 KB Output is correct
9 Correct 7 ms 640 KB Output is correct
10 Correct 20 ms 1280 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 14 ms 768 KB Output is correct
7 Correct 20 ms 1408 KB Output is correct
8 Correct 14 ms 1152 KB Output is correct
9 Correct 6 ms 640 KB Output is correct
10 Correct 18 ms 1280 KB Output is correct
11 Correct 3 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 10 ms 768 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 20 ms 1408 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 368 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Incorrect 2 ms 384 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Incorrect 3 ms 256 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 3 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 25 ms 1152 KB Output is correct
10 Correct 21 ms 1024 KB Output is correct
11 Correct 9 ms 640 KB Output is correct
12 Correct 10 ms 680 KB Output is correct
13 Incorrect 4 ms 384 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 3 ms 512 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 22 ms 1224 KB Output is correct
10 Correct 22 ms 1060 KB Output is correct
11 Correct 9 ms 640 KB Output is correct
12 Correct 12 ms 680 KB Output is correct
13 Incorrect 4 ms 384 KB Output isn't correct
14 Halted 0 ms 0 KB -