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Submission #68815

# Submission time Handle Problem Language Result Execution time Memory
68815 2018-08-18T15:18:48 Z Vahan Gondola (IOI14_gondola) C++17
100 / 100
 44 ms 8168 KB 
#include "gondola.h"
#include<vector>
#include<algorithm>
#include<iostream>
using namespace std;
long long x[200000],xx[200000],a[200000];
long long mod=1000000009;
vector<long long> g;
int valid(int n, int inputSeq[])
{
    vector<long long> v;
    for(long long i=0;i<n;i++)
        xx[i]=inputSeq[i];
    sort(xx,xx+n);
    long long t=0;
    for(long long i=1;i<n;i++)
        if(xx[i]==xx[i-1])
        {
            t=1;
            break;
        }
    if(t==1)
        return 0;
    for(long long i=0;i<n;i++)
    {
        if(inputSeq[i]<=n)
        {
            v.push_back(inputSeq[i]);
            x[inputSeq[i]]=i;
        }
    }
    t=0;
    for(long long i=1;i<v.size();i++)
    {
        if(v[i-1]>v[i])
            t++;
    }
    if(t>=2)
        return 0;
    if(t==1 && v.back()>v[0])
        return 0;
    t=0;
    for(long long i=1;i<v.size();i++)
    {
        if(v[i-1]<v[i])
        {
            if(v[i]-v[i-1]!=x[v[i]]-x[v[i-1]])
            {
                t=1;
                break;
            }
        }
        else if(v[i-1]>v[i])
        {
            if((n-(v[i-1]-v[i]))!=x[v[i]]-x[v[i-1]])
            {
                t=1;
                break;
            }
        }
    }
    if(t==1)
        return 0;
    return 1;
}
long long binpow(long long a,long long b)
{
    if(b==0)
        return 1;
    if(b%2==0)
    {
        long long c=binpow(a,b/2);
        return (c*c)%mod;
    }
    else
    {
        long long c=binpow(a,b/2);
        return (a*((c*c)%mod))%mod;
    }
}
//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    vector<pair<int,int> >v;
    for(int i=0;i<n;i++)
    {
        if(gondolaSeq[i]<=n)
        {
            a[i]=gondolaSeq[i];
            for(int j=i+1;j<n;j++)
            {
                a[j]=a[j-1]+1;
                a[j]%=n;
                if(a[j]==0)
                    a[j]=n;
            }
            for(int j=i-1;j>=0;j--)
            {
                a[j]=a[j+1]-1;
                a[j]%=n;
                if(a[j]==0)
                    a[j]=n;
            }
            break;
        }
    }
    if(a[0]==0)
        for(int i=0;i<n;i++)
            a[i]=i+1;
    for(int i=0;i<n;i++)
        if(gondolaSeq[i]>n)
            v.push_back({gondolaSeq[i],i});
    sort(v.begin(),v.end());
    int t=0;
    for(int i=0;i<v.size();i++)
    {
        int u;
        replacementSeq[t++]=a[v[i].second];
        if(i==0)
            u=n+1;
        else
            u=v[i-1].first+1;
        for(int j=u;j<v[i].first;j++)
            replacementSeq[t++]=j;
    }
    return t;
}

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

int countReplacement(int n, int inputSeq[])
{
    if(valid(n,inputSeq)==0)
        return 0;
    for(long long i=0;i<n;i++)
    {
        if(inputSeq[i]>n)
            g.push_back(inputSeq[i]);
    }
    sort(g.begin(),g.end());
    long long k=g.size();
    long long pat=1;
    for(long long i=0;i<g.size();i++)
    {
        long long u;
        if(i==0)
            u=g[i]-n-1;
        else
            u=g[i]-g[i-1]-1;
        pat*=binpow(k,u);
        pat%=mod;
        k--;
    }
    if(g.size()==n)
        pat*=n;
    pat%=mod;
    return pat;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:33:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(long long i=1;i<v.size();i++)
                       ~^~~~~~~~~
gondola.cpp:43:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(long long i=1;i<v.size();i++)
                       ~^~~~~~~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:116:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v.size();i++)
                 ~^~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:144:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(long long i=0;i<g.size();i++)
                       ~^~~~~~~~~
gondola.cpp:155:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(g.size()==n)
        ~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 2 ms 484 KB Output is correct
3 Correct 3 ms 568 KB Output is correct
4 Correct 3 ms 568 KB Output is correct
5 Correct 3 ms 568 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 568 KB Output is correct
2 Correct 2 ms 568 KB Output is correct
3 Correct 2 ms 568 KB Output is correct
4 Correct 2 ms 568 KB Output is correct
5 Correct 3 ms 592 KB Output is correct
6 Correct 15 ms 1868 KB Output is correct
7 Correct 22 ms 1868 KB Output is correct
8 Correct 18 ms 3156 KB Output is correct
9 Correct 11 ms 3156 KB Output is correct
10 Correct 27 ms 3164 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3164 KB Output is correct
2 Correct 2 ms 3164 KB Output is correct
3 Correct 3 ms 3164 KB Output is correct
4 Correct 3 ms 3164 KB Output is correct
5 Correct 2 ms 3164 KB Output is correct
6 Correct 12 ms 3164 KB Output is correct
7 Correct 23 ms 3164 KB Output is correct
8 Correct 17 ms 3164 KB Output is correct
9 Correct 9 ms 3164 KB Output is correct
10 Correct 24 ms 3164 KB Output is correct
11 Correct 2 ms 3164 KB Output is correct
12 Correct 2 ms 3164 KB Output is correct
13 Correct 13 ms 3164 KB Output is correct
14 Correct 3 ms 3164 KB Output is correct
15 Correct 25 ms 3164 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3164 KB Output is correct
2 Correct 2 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 2 ms 3164 KB Output is correct
5 Correct 3 ms 3164 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3164 KB Output is correct
2 Correct 3 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 4 ms 3164 KB Output is correct
5 Correct 2 ms 3164 KB Output is correct
6 Correct 2 ms 3164 KB Output is correct
7 Correct 3 ms 3164 KB Output is correct
8 Correct 3 ms 3164 KB Output is correct
9 Correct 3 ms 3164 KB Output is correct
10 Correct 4 ms 3164 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3164 KB Output is correct
2 Correct 3 ms 3164 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 3 ms 3164 KB Output is correct
5 Correct 2 ms 3164 KB Output is correct
6 Correct 4 ms 3164 KB Output is correct
7 Correct 3 ms 3164 KB Output is correct
8 Correct 4 ms 3164 KB Output is correct
9 Correct 3 ms 3164 KB Output is correct
10 Correct 4 ms 3164 KB Output is correct
11 Correct 16 ms 3164 KB Output is correct
12 Correct 22 ms 3164 KB Output is correct
13 Correct 26 ms 3248 KB Output is correct
14 Correct 16 ms 3432 KB Output is correct
15 Correct 29 ms 4648 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4648 KB Output is correct
2 Correct 2 ms 4648 KB Output is correct
3 Correct 3 ms 4648 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4648 KB Output is correct
2 Correct 2 ms 4648 KB Output is correct
3 Correct 3 ms 4648 KB Output is correct
4 Correct 3 ms 4648 KB Output is correct
5 Correct 2 ms 4648 KB Output is correct
6 Correct 3 ms 4648 KB Output is correct
7 Correct 3 ms 4648 KB Output is correct
8 Correct 2 ms 4648 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4648 KB Output is correct
2 Correct 3 ms 4648 KB Output is correct
3 Correct 3 ms 4648 KB Output is correct
4 Correct 2 ms 4648 KB Output is correct
5 Correct 3 ms 4648 KB Output is correct
6 Correct 2 ms 4648 KB Output is correct
7 Correct 3 ms 4648 KB Output is correct
8 Correct 2 ms 4648 KB Output is correct
9 Correct 29 ms 4664 KB Output is correct
10 Correct 26 ms 4900 KB Output is correct
11 Correct 14 ms 4900 KB Output is correct
12 Correct 18 ms 4900 KB Output is correct
13 Correct 6 ms 4900 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4900 KB Output is correct
2 Correct 2 ms 4900 KB Output is correct
3 Correct 2 ms 4900 KB Output is correct
4 Correct 3 ms 4900 KB Output is correct
5 Correct 3 ms 4900 KB Output is correct
6 Correct 3 ms 4900 KB Output is correct
7 Correct 2 ms 4900 KB Output is correct
8 Correct 2 ms 4900 KB Output is correct
9 Correct 41 ms 5428 KB Output is correct
10 Correct 33 ms 5792 KB Output is correct
11 Correct 12 ms 5792 KB Output is correct
12 Correct 17 ms 5792 KB Output is correct
13 Correct 6 ms 5792 KB Output is correct
14 Correct 42 ms 7088 KB Output is correct
15 Correct 44 ms 8168 KB Output is correct
16 Correct 11 ms 8168 KB Output is correct
17 Correct 38 ms 8168 KB Output is correct
18 Correct 24 ms 8168 KB Output is correct