Submission #772869

#TimeUsernameProblemLanguageResultExecution timeMemory
772869Tkm_algoDetecting Molecules (IOI16_molecules)C++17
100 / 100
38 ms6180 KiB
#include "bits/stdc++.h" #include "molecules.h" using namespace std; using ll = long long; const int N = 5e5 + 10; vector<int> find_subset(int l, int u, vector<int> w) { vector<pair<int, int>> v; int n = w.size(); for (int i = 0; i < n; i++) { v.push_back({w[i], i}); } sort(v.begin(), v.end()); int lf = -1, r = -1; ll sm = 0; vector<int> ans; while (1) { if (sm < l && r < n - 1) { r++; sm += v[r].first; } else { if (sm > u && lf < n - 1) { lf++; sm -= v[lf].first; } else { if (sm >= l && sm <= u) { for (int i = lf + 1; i <= r; i++) { ans.push_back(v[i].second); } } break; } } } return ans; } // int main() { // ios::sync_with_stdio(false); // cin.tie(0); // int l, u; // cin >> l >> u; // int n; // cin >> n; // vector<int> w; // for (int i = 0; i < n; i++) { // int x; // cin >> x; // w.push_back(x); // } // vector<int> ans = find_subset(l, u, w); // for (auto x : ans) { // cout << x << ' '; // } // }
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