Submission #781342

#	Time	Username	Problem	Language	Result	Execution time	Memory
781342		christinelynn	Detecting Molecules (IOI16_molecules)	C++17	100 / 100	42 ms	6180 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
vector<int> find_subset(int l, int u, vector<int> w) {
  int sz=0;
  vector<pair<int, int>> a;
  for(int p : w) a.push_back({p, sz++});
  sort(a.begin(), a.end());
  long long sum=0;
  int L=0, R=0;
  while(L<sz) {
    while(R<sz && sum<l) sum+=a[R++].first;
    if(l<=sum && sum<=u) {
      vector<int> ans;
      for(int i=L; i<R; i++) ans.push_back(a[i].second);
      return ans;
    }
    sum-=a[L++].first;
    if(l<=sum && sum<=u) {
      vector<int> ans;
      for(int i=L; i<R; i++) ans.push_back(a[i].second);
      return ans;
    }
  }
  return vector<int>(0);
}

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