Submission #305541

#	Time	Username	Problem	Language	Result	Execution time	Memory
305541		myungwoo	Packing Biscuits (IOI20_biscuits)	C++17	100 / 100	20 ms	896 KiB

biscuits

#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();
}

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