답안 #281677

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
281677 2020-08-23T09:52:55 Z SamAnd 곤돌라 (IOI14_gondola) C++17
100 / 100
65 ms 6392 KB
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
typedef long long ll;
const int N = 100005, M = 1000000009;

int n;
int a[N];

int valid(int n, int inputSeq[])
{
    ::n = n;
    for (int i = 0; i < n; ++i)
        a[i] = inputSeq[i];

    set<int> s;
    for (int i = 0; i < n; ++i)
        s.insert(a[i]);
    if (sz(s) != n)
        return 0;

    int minu = M;
    int mini;
    for (int i = 0; i < n; ++i)
    {
        if (a[i] < minu)
        {
            minu = a[i];
            mini = i;
        }
    }

    int q = 0;
    for (int i = mini; i < n; ++i)
    {
        if (a[i] <= n)
        {
            if (a[i] != minu + q)
                return 0;
        }
        ++q;
    }
    for (int i = 0; i < mini; ++i)
    {
        if (a[i] <= n)
        {
            if (a[i] != minu + q)
                return 0;
        }
        ++q;
    }

    return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    ::n = n;
    for (int i = 0; i < n; ++i)
        a[i] = gondolaSeq[i];

    int m = 0;

    vector<pair<int, int> > v;
    for (int i = 0; i < n; ++i)
    {
        if (a[i] > n)
        {
            v.push_back(m_p(a[i], i));
        }
    }

    sort(all(v));
    reverse(all(v));

    ///////////////////////////////////////////
    int minu = M;
    int mini;
    for (int i = 0; i < n; ++i)
    {
        if (a[i] < minu)
        {
            minu = a[i];
            mini = i;
        }
    }

    if (minu > n)
    {
        minu = 1;
    }

    for (int i = mini; i < n; ++i)
    {
        if (minu > n)
            minu = 1;
        a[i] = minu;
        ++minu;
    }
    for (int i = 0; i < mini; ++i)
    {
        if (minu > n)
            minu = 1;
        a[i] = minu;
        ++minu;
    }
    ///////////////////////////////////////////

    int u = n + 1;
    while (!v.empty())
    {
        if (u == v.back().fi)
        {
            replacementSeq[m++] = a[v.back().se];
            a[v.back().se] = u;
            v.pop_back();
        }
        else
        {
            replacementSeq[m++] = a[v.back().se];
            a[v.back().se] = u;
        }
        ++u;
    }

    return m;
}

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

int ast(int x, int n)
{
    int ans = 1;
    while (n)
    {
        if (n % 2 == 1)
            ans = (ans * 1LL * x) % M;
        x = (x * 1LL * x) % M;
        n /= 2;
    }
    return ans;
}

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

    ::n = n;
    for (int i = 0; i < n; ++i)
        a[i] = inputSeq[i];

    vector<pair<int, int> > v;
    for (int i = 0; i < n; ++i)
    {
        if (a[i] > n)
        {
            v.push_back(m_p(a[i], i));
        }
    }

    sort(all(v));
    reverse(all(v));

    bool z = (sz(v) == n);

    int ans = 1;

    int u = n + 1;
    while (!v.empty())
    {
        if (u == v.back().fi)
        {
            v.pop_back();
            ++u;
        }
        else
        {
            ans = (ans * 1LL * ast(sz(v), v.back().fi - u)) % M;
            u = v.back().fi;
        }
    }

    if (z)
        ans = (ans * 1LL * n) % M;

    return ans;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:28:9: warning: 'mini' may be used uninitialized in this function [-Wmaybe-uninitialized]
   28 |     int mini;
      |         ^~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:85:9: warning: 'mini' may be used uninitialized in this function [-Wmaybe-uninitialized]
   85 |     int mini;
      |         ^~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 15 ms 2432 KB Output is correct
7 Correct 33 ms 3968 KB Output is correct
8 Correct 25 ms 4240 KB Output is correct
9 Correct 7 ms 1536 KB Output is correct
10 Correct 28 ms 4864 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 14 ms 2432 KB Output is correct
7 Correct 34 ms 3960 KB Output is correct
8 Correct 24 ms 4224 KB Output is correct
9 Correct 9 ms 1536 KB Output is correct
10 Correct 28 ms 4864 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 23 ms 2304 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 51 ms 4984 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 10 ms 896 KB Output is correct
12 Correct 12 ms 1024 KB Output is correct
13 Correct 17 ms 1424 KB Output is correct
14 Correct 10 ms 896 KB Output is correct
15 Correct 24 ms 2296 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 43 ms 4284 KB Output is correct
10 Correct 36 ms 3712 KB Output is correct
11 Correct 12 ms 1536 KB Output is correct
12 Correct 16 ms 1792 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 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 384 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 42 ms 4344 KB Output is correct
10 Correct 33 ms 3712 KB Output is correct
11 Correct 12 ms 1536 KB Output is correct
12 Correct 15 ms 1792 KB Output is correct
13 Correct 4 ms 640 KB Output is correct
14 Correct 58 ms 4856 KB Output is correct
15 Correct 65 ms 6392 KB Output is correct
16 Correct 10 ms 1408 KB Output is correct
17 Correct 39 ms 4472 KB Output is correct
18 Correct 22 ms 2688 KB Output is correct