Submission #807600

#TimeUsernameProblemLanguageResultExecution timeMemory
807600OAleksaDetecting Molecules (IOI16_molecules)C++14
9 / 100
1 ms212 KiB
#include <bits/stdc++.h>
#include "molecules.h"

#define f first
#define s second
using namespace std; 

vector<int> find_subset(int l, int u, vector<int> w) {
  vector<pair<int, int>> a;
  int n = w.size();
  for(int i = 0;i < n;i++)
  	a.push_back({w[i], i});
  sort(a.begin(), a.end());
  vector<int> ans;
  for(int i = 0;i < n;i++)	{
  	if(a[i].f >= l && a[i].f <= u) {
  		ans.push_back(a[i].s);
  		return ans;
  	}
  }
  long long sm = 0;
  for(int i = 0;i < n;i++) {
  	sm += a[i].f;
  	if(sm >= l && sm <= u) {
  		for(int j = 0;j <= i;j++)
  			ans.push_back(a[j].s);
  		return ans;
  	}
  	else if(sm > u) {
  		sm -= a[i].f;
  		int p = -1;
  		for(int j = 0;j < i;j++) {
  			if(sm - a[j].f + a[i].f >= l && sm - a[j].f + a[i].f <= u) {
  				p = j;
  				break;
  			}
  		}
  		if(p != -1) {
  			for(int j = 0;j <= i;j++) {
  				if(j == p)
  					continue;
  				ans.push_back(a[j].s);
  			}
  		}
  		break;
  	}
  }
  return ans;
}


// int main()
// {
	  // ios_base::sync_with_stdio(false);
	  // cin.tie(0);
	  // cout.tie(0);
	  // int tt = 1;
		// //cin >> tt;
	  // while(tt--) {
			// int l, r;
			// cin >> l >> r;
			// int n;
			// cin >> n;
			// vector<int> x(n);
			// for(int i = 0;i < n;i++)
				// cin >> x[i];
			// vector<int> res = find_subset(l, r, x);
			// for(auto x : res)
				// cout << x << " ";
			// cout << endl;
		// }
    // return 0;
// }
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