# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
1146706 | KickingKun | Detecting Molecules (IOI16_molecules) | C++20 | 0 ms | 328 KiB |
#include <bits/stdc++.h>
using namespace std;
#define ll long long
vector <int> find_subset(int l, int u, vector <int> w) {
vector <int> ind(w.size()); iota(ind.begin(), ind.end(), 0);
ll sum = 0; sort (ind.begin(), ind.end(), [&] (int u, int v) {
return w[u] > w[v];
});
for (int x: ind) sum += w[x];
if (sum < l || w[ind.back()] > u) return {};
sum = 0; vector <int> res;
for (int i = 0; i < w.size(); i++) {
sum += w[ind[i]]; res.emplace_back(ind[i]);
if (sum >= l) {
if (sum <= u) return res;
else {
if (i + 1 != w.size() && sum - w[res[0]] + w[ind.back()] <= u) {
res.erase(res.begin(), res.begin() + 1);
res.emplace_back(ind.back());
return res;
}
else {
sum -= w[ind[i]];
res.pop_back();
}
}
}
}
return {};
}
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