Submission #74162

#	Time	Username	Problem	Language	Result	Execution time	Memory
74162		renatsj	Detecting Molecules (IOI16_molecules)	C++14	46 / 100	1063 ms	6948 KiB

molecules

#include<bits/stdc++.h>
#include "molecules.h"
struct masivs{int val;int poz;};
masivs ab[1000006];
using namespace std;
int i,j,n,m,mas[1000006][2],sum;
vector<int> xx;
vector<int> xcur,xnew;
bool c1(masivs maz,masivs liel)
{
    if (maz.val==liel.val)
    {
        return maz.poz<liel.poz;
    }
    return maz.val<liel.val;
}
vector<int> find_subset(int l, int u, vector<int> w)
{
    i=0;
    while (i<=u)
    {
        mas[i][0]=-1;
        i++;
    }
    mas[u][0]=-2;
    xcur.push_back(u);
    i=0;
    n=w.size();
    while (i<n)
    {
        ab[i].val=w[i];
        ab[i].poz=i;
        sum+=ab[i].val;
        i++;
    }
    if (sum<l)
    {
        return vector<int>(0);
    }
    sort(ab,ab+n,c1);
    i=n-1;
    while (i>=0)
    {
        for (int j:xcur)
        {
            if (j-ab[i].val>=0&&mas[j-ab[i].val][0]==-1)
            {
                //cout << i << " " << j << "\n";
                mas[j-ab[i].val][0]=j;
                mas[j-ab[i].val][1]=ab[i].poz;
                if (j-ab[i].val<=u-l)
                {
                    j-=ab[i].val;
                    while (j<u)
                    {
                        xx.push_back(mas[j][1]);
                        j=mas[j][0];
                    }
                    return xx;
                }
                xnew.push_back(j-ab[i].val);
            }
        }
        for (int j:xnew)
        {
            xcur.push_back(j);
        }
        xnew.clear();
        /*j=0;
        while (j+ab[i].val<=u)
        {
            if (mas[j+ab[i].val][0]!=-1&&mas[j][0]==-1)
            {
                mas[j][0]=j+ab[i].val;
                mas[j][1]=ab[i].poz;
                if (j<=u-l)
                {
                    while (j<u)
                    {
                        xx.push_back(mas[j][1]);
                        j=mas[j][0];
                    }
                    return xx;
                }
            }
            j++;
        }*/
        i--;
    }
    return vector<int>(0);
}

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 12 / 12
• Subtask 4: 15 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31