Submission #436429

#	Time	Username	Problem	Language	Result	Execution time	Memory
436429		2qbingxuan	Detecting Molecules (IOI16_molecules)	C++14	0 / 100	1 ms	204 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>

using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<size_t> id(w.size());
    iota(id.begin(), id.end(), 0);
    sort(id.begin(), id.end(), [&w](size_t a, size_t b) { return w[a] < w[b]; });
    long long sum = 0;
    size_t cnt = 0;
    vector<int> res;
    for (size_t i: id) {
        if (sum + w[i] < l) {
            sum += w[i];
            ++cnt;
            res.push_back(i);
        } else
            break;
    }
    if (cnt == w.size() || cnt == 0)
        return {};
    cerr << cnt << '\n';
    cerr << sum << '\n';
    sum -= w[id.front()];
    sum += w[id.back()];
    if (sum < l || sum > u)
        return {};
    assert (l <= sum && sum <= u);
    res.erase(res.begin());
    res.push_back(id.back());
    return res;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31