제출 #1169211

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1169211		zaki98	A Difficult(y) Choice (BOI21_books)	C++20	0 / 100	1 ms	416 KiB

books

#include "bits/stdc++.h"
#include "books.h"
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define pii pair<int,int>
#define pll pair<long long, long long>
// permutation of the last layer
#define LOO(i,a,b) for (int i = a; i <= b; i++)
#define max3(a, b, c) max(max(a, b), c)
#define min3(a, b, c) min(min(a, b), c)
using namespace std;
void solve(int N, int K, long long A, int S) {
  // we dont have to do binary search save scumming cuz kinda nice restraints fr;
  int l = 1;
  int r = N;
  while (r>l) {
    int mid = (l+r)/2;
    if (skim(mid) < A) {
      l = mid + 1;
    }
    else {
      r = mid;
    }
  }
  int bigger_thana = -1;
  if (r==l) bigger_thana = l;
  else {impossible();return;}
  l = 1;
  r = N;
  while (r>l) {
    int mid = (l+r)/2;
    if (skim(mid) > 2*A) {
      r = mid - 1;
    }
    else {
      l = mid;
    }
  }
  int smaller_thana = -1;
  if (r==l) smaller_thana = l;
  else {impossible();return;}
  if (bigger_thana - smaller_thana + 1 >= K) {
    vector<int> ans = {};
    for (int i = smaller_thana; i < smaller_thana + K; i++) {
      ans.push_back(i);
    }
    answer(ans);
  }
  else {
    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