Submission #1191719

#	Time	Username	Problem	Language	Result	Execution time	Memory
1191719		simona1230	Detecting Molecules (IOI16_molecules)	C++20	100 / 100	34 ms	5192 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;

long long p[200001];
long long n;
pair<int,int> a[200001];

std::vector<int> find_subset(int l, int u, std::vector<int> w)
{
    n=w.size();
    for(int i=0;i<n;i++)
        a[i]={w[i],i};
    sort(a,a+n);

    p[0]=a[0].first;
    for(long long i=1; i<n; i++)
        p[i]=p[i-1]+a[i].first;

    for(long long x=1; x<=n; x++)
    {
        long long s1=p[x-1];
        long long s2=p[n-1]-p[n-x]+a[n-x].first;
        //cout<<x<<" "<<s1<<" "<<s2<<" "<<l<<" "<<u<<endl;
        if(s1<l&&s2>u||s1>=l&&s1<=u||s2>=l&&s2<=u)
        {
            for(long long i=0; i<n; i++)
            {
                long long j=i+x-1;
                long long s=p[j]-p[i]+a[i].first;
                //cout<<i<<" - "<<j<<" "<<s<<endl;
                if(s>=l&&s<=u)
                {
                    vector<int> ans;
                    for(long long y=i; y<=j; y++)
                        ans.push_back(a[y].second);
                        sort(ans.begin(),ans.end());
                    return ans;
                }
            }
        }
    }
    return {};
}

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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