제출 #374822

#제출 시각아이디문제언어결과실행 시간메모리
374822Alex_tz307Detecting Molecules (IOI16_molecules)C++17
0 / 100
1 ms492 KiB
#include <bits/stdc++.h> using namespace std; vector<int> find_subset(int l, int r, vector<int> w) { int N = w.size(); vector<pair<int,int>> a(N); for(int i = 0; i < N; ++i) a[i] = make_pair(w[i], i); sort(a.begin(), a.end()); int st = -1, dr = 0; long long sum = 0; for(const int &x : w) sum += x; while(sum < l || sum > r) { while(sum > r) { if(dr == N) return {}; sum -= a[dr++].first; } while(sum < l) { if(st == N - 1) return {}; sum += a[++st].first; } } vector<int> sol; for(int i = 0; i <= st; ++i) sol.emplace_back(a[i].second); for(int i = dr; i < N; ++i) sol.emplace_back(a[i].second); return sol; }
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