Submission #575045

#	Time	Username	Problem	Language	Result	Execution time	Memory
575045		RealSnake	A Difficult(y) Choice (BOI21_books)	C++14	0 / 100	11 ms	976 KiB

books

#include "bits/stdc++.h"
using namespace std;
#include "books.h"

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

#define ll long long
#define mod 1000000007

void solve(int n, int k, ll a, int S) {
    ll arr[n + 1];
    for(int i = 1; i <= n; i++)
        arr[i] = skim(i);
    bool b[n + 1] = {};
    ll sum = 0;
    for(int i = 1; i <= k; i++) {
        int ind = -1;
        for(int j = 1; j <= n; j++) {
            if(!b[j] && arr[j] >= a / (k - i + 1)) {
                ind = j;
                break;
            }
        }
        if(ind == -1) {
            for(int j = n; j >= 1; j--) {
                if(!b[j]) {
                    ind = j;
                    break;
                }
            }
        }
        sum += arr[ind];
        b[ind] = 1;
    }
    if(sum >= a && sum <= 2 * a) {
        vector<int> ans;
        for(int i = 1; i <= n; i++) {
            if(b[i])
                ans.push_back(i);
        }
        answer(ans);
        return;
    }
    impossible();
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3: 0 / 10
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20