Submission #872941

#	Time	Username	Problem	Language	Result	Execution time	Memory
872941		karimov	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	1 ms	348 KiB

molecules

#include <bits/stdc++.h>
using namespace std;
#define pb push_back

vector<int> find_subset(int l, int u, vector<int> w) {
	int n = w.size();
	vector<pair<int,int>> arr(n);
	for(int i = 0; i < n; i++) {
		arr[i] = make_pair(w[i],i);
	}
	sort(arr.begin(),arr.end());
	vector<long long> pref(n+1);
	for(int i = 1; i <= n; i++) {		
		pref[i] = pref[i-1]+arr[i-1].first;
		// cout <<i << " " << pref[i] << endl;
	}
	// cout<<endl;
	vector<int>ans;
	int left = 1, right = n;
	while(left<=right) {
		long long x = pref[right]-pref[left-1];
		// cout << left << " " << right << " " << x << endl;
		if(x >= l && x <= u) {
			for(int i = left-1; i < right; i++) {
				ans.pb(arr[i].second);
			}
			break;
		} 
		if(x > l) {
			left++;
		}
		else {
			right--;
		}
	}
	sort(ans.begin(),ans.end());
	return ans;
}

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