# | TimeUTC-0 | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
28950 | h0ngjun7 | Detecting Molecules (IOI16_molecules) | C++14 | 99 ms | 5336 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "molecules.h"
#include <algorithm>
using namespace std;
typedef long long ll;
int n, w[200005], c[200005];
inline bool cmp(const int &a, const int &b) {
return w[a] < w[b];
}
vector<int> find_subset(int l, int u, vector<int> _w) {
vector <int> ans = {};
for (auto &t : _w) c[n] = n, w[n++] = t;
sort(c, c + n, cmp);
if (w[c[0]] > u) return ans;
ll s = 0;
int left = 0, right = 0;
for (int i = 0; i < n; i++) {
if (s + w[c[i]] > u) break;
s += w[c[i]];
right = i;
}
if (right == n - 1 && s < l) return ans;
while (right + 1 <= n - 1 && !(l <= s && s <= u)) {
s += w[c[++right]];
while (left <= right && s > u) s -= w[c[left++]];
}
if (l <= s && s <= u) {
for (int i = left; i <= right; i++) ans.push_back(c[i]);
}
return ans;
}
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