Submission #1011221

#	Time	Username	Problem	Language	Result	Execution time	Memory
1011221		overwatch9	A Difficult(y) Choice (BOI21_books)	C++17	0 / 100	1 ms	344 KiB

books

#include <bits/stdc++.h>

#include "books.h"

using namespace std;
using ll = long long;
//
// --- Sample implementation for the task books ---
//
// To compile this program with the sample grader, place:
//     books.h books_sample.cpp sample_grader.cpp
// in a single folder and run:
//     g++ books_sample.cpp sample_grader.cpp
// in this folder.
//
void solve(int N, int K, ll A, int S) {
    vector <int> ans;
    ll sum = 0;
    int lo = 1, hi = N+1;
    while (lo < hi && (int)ans.size() < K) {
        int mid = (lo + hi) / 2;
        ll x = skim(mid);
        if (sum + x <= 2*A) {
            sum += x;
            ans.push_back(mid);
            if (sum < A)
                lo = mid;
            else
                hi = mid;
        } else
            hi = mid;
        
    }
    if (sum < A || (int)ans.size() != K || sum > 2*A)
        impossible();
    answer(ans);
}
// int main() {
//     int n, k, a, s;
//     cin >> n >> k >> a >> s;
//     vector <int> nums(n+1);
//     for (int i = 1; i <= n; i++)
//         cin >> nums[i];
//     auto res = solve(n, k, a, s);
// }

• 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