Submission #1164579

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164579		Aza	Detecting Molecules (IOI16_molecules)	C++20	46 / 100	2 ms	584 KiB

molecules

//AzaLE (Azamat Alisherov)
#include <bits/stdc++.h>
#include "molecules.h"
#define F first
#define S second
#define size(x) (int)x.size()
#define all(x) x.begin(),x.end()
using namespace std;
vector <int> find_subset(int x, int y, vector<int> v){
	int n = size(v);
	vector <pair<int, int>> g;
	for(int i = 0; i < n; i++){
		g.push_back({v[i], i});
	}
	sort(all(g));
	vector <int> ps(n + 1);
	for(int i = 1; i <= n; i++){
		ps[i] = ps[i - 1] + g[i - 1].F;
	}
	int l = n, r = n;
	if(ps[l] < x){
		return {};
	}
	int ansl = -1, ansr = n + 1;
	for(l = l; l >= 0; l--){
		while(r > l and ps[l] + ps[n] - ps[r] < x)r--;
		int sm = ps[l] + ps[n] - ps[r];
		if(sm >= x and sm <= y){
			ansl = l;
			ansr = r;
			break;
		}
	}
	vector <int> ans;
	for(int i = 0; i < ansl; i++){
		ans.push_back(g[i].S);
	}
	for(int i = n - 1; i >= ansr; i--){
		ans.push_back(g[i].S);
	}
	return ans;
}
/*

*/

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: 0 / 23
• Subtask 6: 0 / 31