Submission #246361

#	Time	Username	Problem	Language	Result	Execution time	Memory
246361		Sorting	Cloud Computing (CEOI18_clo)	C++14	100 / 100	710 ms	2168 KiB

clo

#include <bits/stdc++.h>

using namespace std;

const int k_N = 2000 + 3;
const int k_C = 50;

int n, m;
array<int, 4> arr[2 * k_N];//f, which, c, v

long long dp[2][k_N * k_C];
int sum_c;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    cin >> n;
    for(int i = 0; i < n; ++i){
        cin >> arr[i][2] >> arr[i][0] >> arr[i][3];
        arr[i][1] = 1;
        sum_c += arr[i][2];
    }

    cin >> m;
    for(int i = 0; i < m; ++i){
        cin >> arr[i + n][2] >> arr[i + n][0] >> arr[i + n][3];
        arr[i + n][1] = 0;
    }

    sort(arr, arr + n + m);
    reverse(arr, arr + n + m);

    for(int i = 0; i <= sum_c; ++i)
        dp[(n + m) & 1][i] = 0;

    for(int i = n + m - 1; i >= 0; --i){
        bool curr = i & 1;
        bool nxt = !curr;

        for(int j = 0; j <= sum_c; ++j){
            long long &answer = dp[curr][j];
            answer = dp[nxt][j];
            if(arr[i][1])
                answer = max(dp[nxt][j + arr[i][2]] - arr[i][3], answer);
            else if(j >= arr[i][2])
                answer = max(dp[nxt][j - arr[i][2]] + arr[i][3], answer);
        }
    }

    cout << dp[0][0] << "\n";
}

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