Submission #248694

#	Time	Username	Problem	Language	Result	Execution time	Memory
248694		Evirir	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	70 ms	8296 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#define watch(x) cout<<(#x)<<"="<<(x)<<'\n'
#define mset(d,val) memset(d,val,sizeof(d))
#define setp(x) cout<<fixed<<setprecision(x)
#define forn(i,a,b) for(int i=(a);i<(b);i++)
#define fore(i,a,b) for(int i=(a);i<=(b);i++)
#define pb push_back
#define F first
#define S second
#define pqueue priority_queue
#define fbo find_by_order
#define ook order_of_key
typedef long long ll;
typedef pair<ll,ll> ii;
typedef vector<ll> vi;
typedef vector<ii> vii;
typedef long double ld;
typedef tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> pbds;
void amin(ll &a, ll b){ a=min(a,b); }
void amax(ll &a, ll b){ a=max(a,b); }
void YES(){cout<<"YES\n";} void NO(){cout<<"NO\n";}
void SD(int t=0){ cout<<"PASSED "<<t<<endl; }
const ll INF = ll(1e18);
const int MOD = 998244353;

bool DEBUG = 0;
const int MAXN = 200005;

vector<int> find_subset(int L, int R, vector<int> w)
{
	int n = w.size();
	
	vector<ii> a;
	for(int i=0;i<n;i++){
		a.pb({w[i],i});
	}
	sort(a.begin(), a.end());
	
	ll Min=0,Max=0;
	for(int z=0;z<n;z++)
	{
		Min+=a[z].F;
		Max+=a[n-1-z].F;
		if(L<=Max && Min<=R)
		{
			deque<ii> ans;
			fore(i,0,z) ans.pb(a[i]);
			ll sum=Min;
			
			int r=n-1;
			while(1)
			{
				if(sum>=L){
					vector<int> fa;
					for(ii x: ans) fa.pb(x.S);
					return fa;
				}
				
				sum-=ans.front().F; ans.pop_front();
				sum+=a[r].F; ans.push_back(a[r]); r--;
			}
		}
	}
	
    return vector<int>();
}

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