제출 #374828

#제출 시각아이디문제언어결과실행 시간메모리
374828Alex_tz307Detecting Molecules (IOI16_molecules)C++17
9 / 100
1 ms364 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 = N; long long sum = 0; while(sum < l || sum > r) { while(sum > r) { if(st == N - 1) return {}; sum -= a[++st].first; } while(sum < l) { if(dr == 0) return {}; sum += a[--dr].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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