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Submission #849712

# Submission time Handle Problem Language Result Execution time Memory
849712 2023-09-15T08:28:06 Z abcvuitunggio Gondola (IOI14_gondola) C++17
45 / 100
 32 ms 7260 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

map <int, int> mp;
set <int> s;

int valid(int n, int inputSeq[])
{
    int pos=0;
    for (int i=0;i<n;i++){
        if (mp.count(inputSeq[i]))
            return 0;
        if (inputSeq[pos]>inputSeq[i])
            pos=i;
        mp[inputSeq[i]]=1;
    }
    if (inputSeq[pos]>n)
        return 1;
    for (int i=0;i<n;i++)
        if (inputSeq[i]<=n&&((i-pos+n)%n+inputSeq[pos]-1)%n+1!=inputSeq[i])
            return 0;
    return 1;
}

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

int pos[250001],cur[100001];

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    int val=0,p=0,mx=0;
    for (int i=0;i<n;i++){
        if (gondolaSeq[p]>gondolaSeq[i])
            p=i;
        mx=max(mx,gondolaSeq[i]);
    }
    if (gondolaSeq[p]>n)
        val=1,p=0;
    else
        val=gondolaSeq[p];
    for (int i=0;i<n;i++){
        int j=((i-p+n)%n+val-1)%n+1;
        pos[gondolaSeq[i]]=j;
        cur[j]=j;
        s.insert(i+1);
    }
    int l=0;
    for (int i=n+1;i<=mx;i++){
        if (!pos[i])
            pos[i]=*s.begin();
        else
            s.erase(pos[i]);

        replacementSeq[l]=cur[pos[i]];
        l++;
        cur[pos[i]]=i;
    }
    return l;
}

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

const int mod=1000000009;
vector <int> v;

int pw(int a, int b){
    if (!b)
        return 1;
    int t=pw(a,b>>1);
    t=1LL*t*t%mod;
    return (b&1?1LL*t*a%mod:t);
}

int countReplacement(int n, int inputSeq[])
{
    if (!valid(n,inputSeq))
        return 0;
    for (int i=0;i<n;i++)
        if (inputSeq[i]>n)
            v.push_back(inputSeq[i]);
    v.push_back(n);
    sort(v.begin(),v.end());
    int res=1;
    for (int i=1;i<v.size();i++)
        res=1LL*res*pw(v.size()-i,v[i]-v[i-1]-1)%mod;
    return res;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:86:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |     for (int i=1;i<v.size();i++)
      |                  ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2904 KB Output is correct
6 Correct 10 ms 4440 KB Output is correct
7 Correct 7 ms 3164 KB Output is correct
8 Correct 19 ms 6492 KB Output is correct
9 Correct 6 ms 3788 KB Output is correct
10 Correct 23 ms 7008 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 10 ms 4440 KB Output is correct
7 Correct 7 ms 3164 KB Output is correct
8 Correct 19 ms 6492 KB Output is correct
9 Correct 6 ms 3676 KB Output is correct
10 Correct 23 ms 7000 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 13 ms 4324 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 31 ms 7260 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2492 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Incorrect 1 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2496 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Incorrect 1 ms 2396 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2400 KB Output is correct
6 Correct 1 ms 2400 KB Output is correct
7 Correct 1 ms 2400 KB Output is correct
8 Correct 1 ms 2496 KB Output is correct
9 Correct 32 ms 7000 KB Output is correct
10 Correct 25 ms 6236 KB Output is correct
11 Correct 12 ms 3928 KB Output is correct
12 Correct 12 ms 4188 KB Output is correct
13 Incorrect 3 ms 2908 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2400 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2492 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2648 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 32 ms 6988 KB Output is correct
10 Correct 25 ms 6276 KB Output is correct
11 Correct 9 ms 3932 KB Output is correct
12 Correct 13 ms 4176 KB Output is correct
13 Incorrect 3 ms 2908 KB Output isn't correct
14 Halted 0 ms 0 KB -