Submission #1000213

#	Time	Username	Problem	Language	Result	Execution time	Memory
1000213		overwatch9	Detecting Molecules (IOI16_molecules)	C++17	46 / 100	1020 ms	4696 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> find_subset(int l, int u, std::vector<int> w) {
    int n = w.size();
    vector <pair <int, int>> dp(u+1, {1e9, -1});
    dp[0].first = 0;
    for (int i = 0; i < n; i++) {
        for (int j = u; j >= w[i]; j--) {
            if (dp[j - w[i]].first + w[i] < dp[j].first) {
                dp[j].first = dp[j - w[i]].first + w[i];
                dp[j].second = i;
            }
        }
    }
    vector <int> ans;
    int st = -1;
    for (int i = l; i <= u; i++) {
        if (dp[i].second != -1) {
            st = i;
            break;
        }
    }
    // cout << "MOI: " << st << '\n';
    if (st == -1)
        return ans;
    while (st > 0) {
        int nxt = dp[st].second;
        // cout << "MOI: " << nxt << ' ' << w[nxt] << '\n';
        ans.push_back(nxt);
        st = st - w[nxt];
    }
    return ans;
    
}

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