Submission #305541

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
305541	2020-09-23 13:38:17	myungwoo	Packing Biscuits (IOI20_biscuits)	C++17	100 / 100	20 ms	896 KiB

biscuits

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#include <bits/stdc++.h>
#include "biscuits.h"
using namespace std;
#define debug(...) fprintf(stderr, __VA_ARGS__), fflush(stderr)
typedef long long lld;
lld count_tastiness(lld x, vector<lld> a)
{
  vector <lld> status(63, 0);
  lld sum = 0;
  for (int i=0;i<63;i++){
    if (i < a.size()) sum += a[i]<<i;
    status[i] = sum;
  }
  vector <lld> dp(63, 0); dp[0] = 1;
  for (int i=1;i<63;i++){
    lld cur = sum; dp[i] = 1;
    for (int j=i;j--;){
      cur = min(cur, status[j]);
      if (x <= cur>>j){
        cur -= x<<j;
        dp[i] += dp[j];
      }
    }
  }
  return dp.back();
}
 
 
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Compilation message (stderr)

biscuits.cpp: In function 'lld count_tastiness(lld, std::vector<long long int>)':
biscuits.cpp:13:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |   if (i < a.size()) sum += a[i]<<i;
      |       ~~^~~~~~~~~~

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