Submission #1055543

#	Time	Username	Problem	Language	Result	Execution time	Memory
1055543		Trent	Packing Biscuits (IOI20_biscuits)	C++17	9 / 100	1050 ms	1051004 KiB

biscuits

#include "biscuits.h"
#include "bits/stdc++.h"
using namespace std;
#define forR(i, x) for(int i = 0; i < (x); ++i)
#define REP(i, a, b) for(int i = (a); i < (b); ++i)
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef vector<ll> vll;

long long count_tastiness(long long x, std::vector<long long> a) {
	int k = 60;
	while(a.size() < k) a.push_back(0);
	vll vals = {a[0]};
	forR(i, k) {
		if(i + 1 < k) {
			vll nex = {};
			for(ll j : vals) {
				nex.push_back(j / 2 + a[i+1]);
				if(x <= j) nex.push_back((j-x) / 2 + a[i+1]);
			}
			vals.swap(nex);
		} else {
			ll tot = 0;
			for(ll j : vals) tot += j >= x ? 2 : 1;
			return tot;
		}
	}
}

Compilation message (stderr)

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:12:17: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   12 |  while(a.size() < k) a.push_back(0);
      |        ~~~~~~~~~^~~
biscuits.cpp:13:18: warning: control reaches end of non-void function [-Wreturn-type]
   13 |  vll vals = {a[0]};
      |                  ^

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