제출 #335151

#제출 시각아이디문제언어결과실행 시간메모리
335151blueDetecting Molecules (IOI16_molecules)C++17
100 / 100
56 ms6508 KiB
#include "molecules.h" #include <vector> #include <algorithm> using namespace std; vector<long long> W(200001); int n; vector<int> find_subset(int l, int u, vector<int> w) { n = w.size(); int i, x; for(i = 0; i < n; i++) W[i] = w[i]; vector<int> I(n); for(i = 0; i < n; i++) I[i] = i; sort(I.begin(), I.end(), [] (int x, int y) { return W[x] < W[y]; }); vector<int> res; long long a = 0, b = -1; long long sum = 0; while(1) { if(sum < l) { if(b == n-1) return res; else { b++; sum += W[I[b]]; } } else if(sum > u) { a++; sum -= W[I[a-1]]; } else { for(x = a; x <= b; x++) res.push_back(I[x]); return res; } } }
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