Submission #622816

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
622816	2022-08-04 15:23:00	erekle	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1093 ms	340 KiB

biscuits

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#include "biscuits.h"
#include <bits/stdc++.h>
using namespace std;
const int MX = 60;
long long count_tastiness(long long x, vector<long long> a) {
  int k = a.size();
  k = MX;
  while (a.size() < k) a.push_back(0);
  long long maxSum = 0;
  for (int i = 0; i < k; ++i) {
    maxSum += (1LL << i) * a[i];
  }
  auto possible = [&k, &a, &maxSum, &x](const bitset<MX> &y) {
    long long need = 0; // as a multiple of current power of two
    for (int i = k-1; i >= 0; --i) {
      if (y[i]) need += x;
      long long use = min(need, a[i]);
      need -= use;
      need <<= 1;
      if (need > maxSum) return false;
    }
    return !need;
  };
  bitset<MX> y = 0;
  long long ans = 1;
 
 
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Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:11:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |  while (a.size() < k) a.push_back(0);
      |         ~~~~~~~~~^~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23