oj.uz

Submission #1017826

# Submission time Handle Problem Language Result Execution time Memory
1017826 2024-07-09T10:32:50 Z simona1230 Gondola (IOI14_gondola) C++17
75 / 100
 52 ms 8152 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
const long long mod=1e9+9;

long long mult(long long x,long long p)
{
    if(p==0)return 1;
    if(p==1)return x;
    long long half=mult(x,p/2);
    if(p%2==0)return (half*half)%mod;
    return (((half*half)%mod)*x)%mod;
}
int n;
long long a[100001];
map<long long,long long> mp;
bool check()
{
    mp.clear();
    long long idx=-1;
    for(int i=0; i<n; i++)
    {
        if(mp[a[i]])return 0;
        mp[a[i]]++;
        if(a[i]<=n)
        {
            idx=i;
        }
    }
    if(idx==-1)return 1;

    long long curr=a[idx];
    for(int i=idx; i<n; i++)
    {
        if(a[i]<=n&&a[i]!=curr)return 0;
        curr++;
        if(curr==n+1)curr=1;
    }

    for(int i=0; i<idx; i++)
    {
        if(a[i]<=n&&a[i]!=curr)return 0;
        curr++;
        if(curr==n+1)curr=1;
    }
    return 1;
}

int valid(int N, int inputSeq[])
{
    n=N;
    for(int i=0; i<n; i++)
        a[i]=inputSeq[i];
    //cout<<check()<<endl;
    return check();
}

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


int req[100001];
void needed()
{
    int idx=-1;
    for(int i=0; i<n; i++)
    {
        if(a[i]<=n)
        {
            idx=i;
        }
    }
    if(idx==-1)
    {
        for(int i=0; i<n; i++)
            req[i]=i+1;
        return;
    }

    int curr=a[idx];
    for(int i=idx; i<n; i++)
    {
        req[i]=curr;
        curr++;
        if(curr==n+1)curr=1;
    }

    for(int i=0; i<idx; i++)
    {
        req[i]=curr;
        curr++;
        if(curr==n+1)curr=1;
    }
}

bool cmp(int i,int j)
{
    return a[i]<a[j];
}

int replacement(int N, int gondolaSeq[], int replacementSeq[])
{
    n=N;
    for(int i=0; i<n; i++)
        a[i]=gondolaSeq[i];
    needed();
    vector<int> v;
    for(int i=0; i<n; i++)
    {
        if(a[i]!=req[i])v.push_back(i);
    }
    sort(v.begin(),v.end(),cmp);

    /*for(int i=0;i<n;i++)
        cout<<req[i]<<" ";
    cout<<endl;*/
    int all=n+1;
    int cnt=0;
    for(int i=0; i<v.size(); i++)
    {
        int idx=v[i];
        //cout<<req[idx]<<endl;
        while(req[idx]!=a[idx])
        {
            replacementSeq[cnt++]=req[idx];
            req[idx]=all++;
        }
    }
    return cnt;
}

//----------------------
int countReplacement(int N, int inputSeq[])
{
    n=N;
    for(int i=0; i<n; i++)
        a[i]=inputSeq[i];
    if(check()==0)return 0;
    needed();
    vector<long long> v;
    mp.clear();
    long long maxx=n+1;
    for(int i=0; i<n; i++)
    {
        mp[a[i]]=i;
        maxx=min(maxx,a[i]);
        if(a[i]!=req[i])v.push_back(i);
        if(req[i]==n)mp[n]=i;
    }
    sort(v.begin(),v.end(),cmp);
    long long ans=1;
    long long last=n;
    for(int i=0; i<v.size(); i++)
    {
        long long pos=v.size()-i;
        long long cnt=a[v[i]]-last-1;
        //cout<<last<<" "<<a[v[i]]<<" "<<pos<<" "<<cnt<<endl;
        ans=(ans*mult(pos,cnt))%mod;
        last=a[v[i]];
    }

    if(v.size()==n)
    {
        for(int i=1; i<=n; i++)
        {
            ans=(ans*i)%mod;
        }
    }

    return (int)ans;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:118:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  118 |     for(int i=0; i<v.size(); i++)
      |                  ~^~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:152:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  152 |     for(int i=0; i<v.size(); i++)
      |                  ~^~~~~~~~~
gondola.cpp:161:16: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  161 |     if(v.size()==n)
      |        ~~~~~~~~^~~

Subtask #1
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 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct

Subtask #2
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 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 11 ms 4704 KB Output is correct
7 Correct 12 ms 2652 KB Output is correct
8 Correct 21 ms 7004 KB Output is correct
9 Correct 6 ms 3928 KB Output is correct
10 Correct 24 ms 7828 KB Output is correct

Subtask #3
10.0 / 10.0

# 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 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 10 ms 4736 KB Output is correct
7 Correct 6 ms 2652 KB Output is correct
8 Correct 20 ms 7168 KB Output is correct
9 Correct 6 ms 3932 KB Output is correct
10 Correct 24 ms 7836 KB Output is correct
11 Correct 0 ms 2392 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 16 ms 4700 KB Output is correct
14 Correct 0 ms 2392 KB Output is correct
15 Correct 33 ms 8152 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 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2392 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 5 ms 2652 KB Output is correct
12 Correct 6 ms 2908 KB Output is correct
13 Correct 10 ms 3212 KB Output is correct
14 Correct 5 ms 2652 KB Output is correct
15 Correct 12 ms 3608 KB Output is correct

Subtask #7
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 0 ms 2396 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 2392 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2396 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 52 ms 7868 KB Output is correct
10 Correct 40 ms 6896 KB Output is correct
11 Correct 17 ms 4184 KB Output is correct
12 Correct 18 ms 4444 KB Output is correct
13 Incorrect 4 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 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 0 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 49 ms 7876 KB Output is correct
10 Correct 38 ms 6988 KB Output is correct
11 Correct 15 ms 4188 KB Output is correct
12 Correct 18 ms 4440 KB Output is correct
13 Incorrect 4 ms 2908 KB Output isn't correct
14 Halted 0 ms 0 KB -