Submission #361770

#	Time	Username	Problem	Language	Result	Execution time	Memory
361770		arujbansal	Cloud Computing (CEOI18_clo)	C++17	100 / 100	446 ms	1388 KiB

clo

#include <bits/stdc++.h>

using namespace std;

void dbg_out() { cerr << endl; }
template<typename Head, typename... Tail>
void dbg_out(Head H, Tail... T) { cerr << ' ' << H; dbg_out(T...); }
#define dbg(...) cerr << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)

#define rng_init mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define all(x) (x).begin(), (x).end()
#define sz(x) (int) (x).size()
#define int long long

const int MXN = 1e5 + 5, INF = 1e18;

struct Computer {
    int cores, freq, price;

    Computer(int cores, int freq, int price) : cores(cores), freq(freq), price(price) {}

    bool operator<(const Computer &other) const {
        if (freq == other.freq) {
            return price < other.price;
        }

        return freq > other.freq;
    }
};

void solve() {
    int N;
    cin >> N;

    vector<Computer> computers;

    for (int i = 0; i < N; i++) {
        int cores, freq, price;
        cin >> cores >> freq >> price;
        computers.emplace_back(cores, freq, -price);
    }

    int M;
    cin >> M;

    for (int i = 0; i < M; i++) {
        int cores, freq, price;
        cin >> cores >> freq >> price;
        computers.emplace_back(cores, freq, price);
    }

    sort(all(computers));

    vector<int> dp(MXN, -INF);
    dp[0] = 0;

    for (int i = 0; i < sz(computers); i++) {
        if (computers[i].price < 0) {
            // This is a computer we have
            for (int j = MXN - 1; j >= computers[i].cores; j--) {
                dp[j] = max(dp[j], dp[j - computers[i].cores] + computers[i].price);
            }
        } else {
            // This is an order
            for (int j = 0; j < MXN; j++) {
                if (j + + computers[i].cores < MXN) {
                    dp[j] = max(dp[j], dp[j + computers[i].cores] + computers[i].price);
                }
            }
        }
    }

    cout << *max_element(all(dp));
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

#ifdef local
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif

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

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 18 / 18
• Subtask 5: 18 / 18
• Subtask 6: 10 / 10