Submission #401402

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
401402	2021-05-10 06:43:23	johutha	A Difficult(y) Choice (BOI21_books)	C++17	100 / 100	2 ms	280 KiB

books

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#include <bits/stdc++.h>
#include "books.h"
#define ll long long
using namespace std;
//
// --- 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)
{
    int l = -1;
    int r = N;
    ll lb = 1e18;
    while (l + 1 < r)
    {
        int m = (l + r) / 2;
        ll v = skim(m + 1);
        if (v >= A) { r = m; lb = min(lb, v); }
        else l = m;
    }
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 15 / 15
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20