Submission #301599

#	Time	Username	Problem	Language	Result	Execution time	Memory
301599		kevinsogo	Jelly Flavours (IOI20_jelly)	C++17	100 / 100	68 ms	632 KiB

jelly

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

int find_maximum_unique(int X, int Y, vector<int> xs, vector<int> ys) {
    xs.push_back(0);
    ys.push_back(0);
    int n = xs.size();

    vector<bool> inc(n);
    vector<int> miny(X + 1);
    vector<int> xis(n), yis(n);
    iota(xis.begin(), xis.end(), 0);
    iota(yis.begin(), yis.end(), 0);
    sort(xis.begin(), xis.end(), [&](int i, int j) { return xs[i] < xs[j]; });
    sort(yis.begin(), yis.end(), [&](int i, int j) { return ys[i] < ys[j]; });
    int ans = 0, curr = 0;
    for (int i : xis) {
        curr++;
        inc[i] = true;
        for (int x = X; x >= 0; x--) miny[x] += ys[i];
        for (int x = X; x >= xs[i]; x--) miny[x] = min(miny[x], miny[x-xs[i]]-ys[i]);
        if (int y = miny[X]; y <= Y) {
            int cand = curr;
            for (int j : yis) {
                if (!inc[j] && y + ys[j] <= Y) {
                    y += ys[j];
                    cand++;
                }
            }
            ans = max(ans, cand);
        }
    }
    return ans - 1;
}

• Subtask 1: 11 / 11
• Subtask 2: 24 / 24
• Subtask 3: 9 / 9
• Subtask 4: 10 / 10
• Subtask 5: 14 / 14
• Subtask 6: 32 / 32