Submission #1309341

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309341		shirokito	Detecting Molecules (IOI16_molecules)	C++20	31 / 100	157 ms	672 KiB

molecules

#include <bits/stdc++.h>
using namespace std;

#define all(a) (a).begin(), (a).end()

using ll = long long;

const int N = 5e5 + 5;

bitset<N> dp;

vector<int> find_subset(int l, int u, vector<int> w) {
    int n = w.size();

    dp[0] = 1;
    for (int &x: w) {
        dp |= (dp << x);
    }

    int cur = -1;

    for (int x = l; x <= u; x++) {
        if (dp[x] == 1) {
            cur = x;
            break;
        }
    }

    vector<int> ans;

    for (int i = 0; i < n; i++) {
        if (cur - w[i] >= 0 && dp[cur - w[i]]) {
            ans.push_back(i);
            cur -= w[i];
        }
    }

    if (cur == 0) return ans;
    return vector<int> {}; 
}

#ifdef LOCAL

void solve() {
    int n, l, u; cin >> n >> l >> u;
    vector<int> w(n); for (int &x: w) cin >> x;

    auto ans = find_subset(l, u, w);

    for (int x: ans) cout << x << ' ';
    cout << '\n';
}

signed main() {
    cin.tie(0) -> sync_with_stdio(0);

    int T = 1; // cin >> T;
    while (T--) {
        solve();
    }
}

#endif

Compilation message (stderr)

molecules.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
molecules_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~

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