oj.uz

Submission #162046

# Submission time Handle Problem Language Result Execution time Memory
162046 2019-11-06T06:35:55 Z nafis_shifat Gondola (IOI14_gondola) C++14
60 / 100
 60 ms 4700 KB 
#include "gondola.h"
#include<bits/stdc++.h>
#define pii pair<int,int>
#define ll long long
using namespace std;
const ll mod=1e9+7;



ll bigmod(ll a,ll b)
{
	if(b==0)return 1;
	ll mid=b/2;
	ll c=bigmod(a,mid);
	if(b%2==0)return (c*c)%mod;
	 c=(c*c)%mod;
	return (a*c)%mod;
}

int valid(int n, int inputSeq[])
{
	map<int,int> mp;
	int st=-1;
	for(int i=0;i<n;i++)
	{
		if(mp[inputSeq[i]]==1)return 0;
		mp[inputSeq[i]]=1;
		if(inputSeq[i]<=n && st==-1)
			st=i;
		

	}

	if(st==-1)return 1;
    int kb=inputSeq[st]+1;
    
    for(int i=st+1;i<n;i++)
    {
    	if(kb>n)kb=1;
    	if(inputSeq[i]!=kb++ && inputSeq[i]<=n)return 0;
    }
    for(int i=0;i<st;i++)
    {
    	if(kb>n)kb=1;
    	if(inputSeq[i]!=kb++ && inputSeq[i]<=n)return 0;
    }
    return 1;
}
//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	int st=-1;
	vector<pii> v;
	for(int i=0;i<n;i++)
	{
		if(gondolaSeq[i]<=n)
		{
			st=i;
			break;
		}
		
	}

	if(st==-1)
	{
		for(int i=0;i<n;i++)if(gondolaSeq[i]>n)v.push_back({gondolaSeq[i],i+1});
	}
    else
    {
    	int s;
    	if(gondolaSeq[st]>st)s=gondolaSeq[st]-st;
    	else s=n-(st-gondolaSeq[st]);
    	for(int i=0;i<n;i++)
    	{
    		if(s==n+1)s=1;
    		if(gondolaSeq[i]>n)
    		{
    		    v.push_back({gondolaSeq[i],s});
    		    
    		}
    		s++;
    	}
    }

    sort(v.begin(),v.end());

    int li=0;
    int tr=n+1;


    for(int i=0;i<v.size();i++)
    {
    	replacementSeq[li++]=v[i].second;

    	while(tr<v[i].first)
    	{
    	
    		replacementSeq[li++]=tr++;
    	}
    	tr++;

    }
    return li;


    

}

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

int countReplacement(int n, int inputSeq[])
{


	if(!valid(n,inputSeq))return 0;

	int df=0;

	vector<ll> v;
	for(int i=0;i<n;i++)
		if(inputSeq[i]<=n)df=1;
	    else v.push_back(inputSeq[i]);
	sort(v.begin(),v.end());
	ll last=n;
	ll sz=v.size();
	ll res=1;
	if(df==0)res=n;
	for(int i=0;i<sz;i++)
	{
		ll dd=v[i]-df-last;
		
	

		res*=bigmod(sz-i,dd);
	
	
		res%=mod;
		last=v[i];


	}
	return res;

}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:92:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v.size();i++)
                 ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 22 ms 2296 KB Output is correct
7 Correct 14 ms 760 KB Output is correct
8 Correct 36 ms 4004 KB Output is correct
9 Correct 12 ms 1528 KB Output is correct
10 Correct 49 ms 4600 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 8 ms 256 KB Output is correct
6 Correct 20 ms 2296 KB Output is correct
7 Correct 14 ms 760 KB Output is correct
8 Correct 39 ms 3988 KB Output is correct
9 Correct 12 ms 1528 KB Output is correct
10 Correct 48 ms 4600 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 24 ms 2168 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 60 ms 4700 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 352 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 3 ms 504 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 12 ms 660 KB Output is correct
12 Correct 13 ms 604 KB Output is correct
13 Correct 17 ms 1276 KB Output is correct
14 Correct 12 ms 636 KB Output is correct
15 Correct 24 ms 2276 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Incorrect 2 ms 256 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Incorrect 2 ms 380 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Incorrect 2 ms 256 KB Output isn't correct
8 Halted 0 ms 0 KB -