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#include <iostream>
#include <set>
#include <algorithm>
#include <vector>
#include <list>
#include <iterator>
#include <map>
#include <stack>

std::set< std::vector<int> > oMapPralineSets;

class CompareLess {
public:
    bool operator() (int i, int j) { return (i < j); }
} CompareLessObject;

int suma( const std::vector<int>& oVector, const std::vector<int>& oPralineVector )
{
    int suma = 0;

    for(int i=0; i< oVector.size(); i++ )
        suma += oPralineVector[oVector[i]];

    return suma;
}

bool IsExistElementSet( const std::vector<int>& oVector )
{
    return oMapPralineSets.find(oVector) != oMapPralineSets.end();
}

/*
int suma()
{
    int suma = 0;

    std::set< std::vector<int> >::iterator it = oVectorPralineSets.begin();

        int n = it->size();

        for (int i = 0; i < n; i++)
            suma += it->at(i);

    return suma;
}
*/

bool InsertElementIntoVector( std::vector<int>& oVector, const int iNumberOfPralines )
{
    bool bIsInsertIntoVector = true;

    oVector.push_back( iNumberOfPralines );

    return bIsInsertIntoVector;
}

void DeleteElementFromVector(std::vector<int>& oVector, const int iNumberOfPralines)
{
    bool bIsDeleteFromVector = true;

    oVector.erase( oVector.begin() + iNumberOfPralines );

    return;
}

int main()
{
    int n = 5;
    int result = 0;
    int sumOfPralines = 0;
    std::vector<int> oVectorPralineCount{ 2,7,4,4,1 };
    std::map<int,int> oDubledValuesVectorMap;
    std::map<int,int> oOccurencyValuesVectorMap;
    int k = 0;

    if( n >= 1 && n <= 5000 )
    {
        std::sort( oVectorPralineCount.begin(), oVectorPralineCount.end(), CompareLessObject );

        for( int i = 0; i < n; i++ )
        {
            sumOfPralines += oVectorPralineCount[i];
            oDubledValuesVectorMap[oVectorPralineCount[i]]++;
        }

        for( int i = 1; i <= sumOfPralines; i++ )
        {
            std::vector<int> oSingleEntryVector;
            std::stack<int> oSingleEntryUsedStack;
            std::vector<int> oTempVectorPralineCount = oVectorPralineCount;
            std::vector<int>::iterator min_element;
            int iMinElement = 0;
            std::vector<int>::iterator iMinElementIndex;
            std::vector<int>::iterator iteratorTemp;
            oOccurencyValuesVectorMap.clear();
            while( suma(oSingleEntryVector, oVectorPralineCount) < i )
            {

                min_element = std::min_element(oTempVectorPralineCount.begin(),
                    oTempVectorPralineCount.end());
                if( min_element != oTempVectorPralineCount.end() )
                {
                    iMinElement = *min_element;
                    iMinElementIndex = std::find(oVectorPralineCount.begin(),
                        oVectorPralineCount.end(),
                        iMinElement);
                    iMinElement = std::distance(oVectorPralineCount.begin(),
                        iMinElementIndex);

                    oTempVectorPralineCount.erase(min_element);
                }
              
                
                if( std::find( oSingleEntryVector.begin(), oSingleEntryVector.end(), iMinElement ) 
                    == oSingleEntryVector.end() )
                {
                    InsertElementIntoVector(oSingleEntryVector, iMinElement);
                    std::sort(oSingleEntryVector.begin(), oSingleEntryVector.end(), CompareLessObject);
                }

                if (oDubledValuesVectorMap[oVectorPralineCount[iMinElement]] > 1
                    //&& oOccurencyValuesVectorMap[oVectorPralineCount[iMinElement]] > 1 
                    //&& i - 1 == oVectorPralineCount[iMinElement] 
                    //&& i < oVectorPralineCount[iMinElement]
                    && IsExistElementSet(oSingleEntryVector))
                {
                    if( oMapPralineSets.find(oSingleEntryVector) != oMapPralineSets.end() )
                    {
                        DeleteElementFromVector(oSingleEntryVector, iMinElement);

                        if (oVectorPralineCount[iMinElement] == oVectorPralineCount[iMinElement + 1])
                        {
                            InsertElementIntoVector(oSingleEntryVector, iMinElement + 1);
                            std::sort(oSingleEntryVector.begin(), oSingleEntryVector.end(), CompareLessObject);
                        }
                        else if (oVectorPralineCount[iMinElement] == oVectorPralineCount[iMinElement - 1])
                        {
                            InsertElementIntoVector(oSingleEntryVector, iMinElement - 1);
                            std::sort(oSingleEntryVector.begin(), oSingleEntryVector.end(), CompareLessObject);
                        }
                    }
                }

                //oOccurencyValuesVectorMap[oVectorPralineCount[ iMinElement ] ]++;
            }

            std::cout << "Iteracja " << i << " ";

            int isize = oSingleEntryVector.size();

            for (int z = 0; z < isize; z++)
            {
                std::cout << oSingleEntryVector[z] << " ";
            }
            std::cout << std::endl;

            oMapPralineSets.insert( oSingleEntryVector );
        }

        result = oMapPralineSets.size();

        if( result >= 1000000007 )
        {
            result %= 1000000007;
        }

       std::cout << result;
    }
}