deque-blog

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deque-blog / payment.hs

Last active February 14, 2018 14:24

	data Payment = Payment
	{ amount :: Money
	, from :: Account
	, to :: Account
	}

deque-blog / accumulate_long_long.cpp

Created February 12, 2018 21:49

	/**
	* Example:
	* - Grades: 2 4 2 6 1 7 8 9 2 1
	* - Candies: 1 2 1 2 1 2 3 4 2 1
	*
	* Look for the longest strictly increasing & decreasing sequence?
	*/
	long long min_candies(std::vector<long long> const& grades)
	{
	int n = grades.size();

deque-blog / FlipMatrix.hs

Last active February 12, 2018 09:30

	import qualified Data.Vector as V

	main :: IO ()
	main = do
	n <- readLn
	replicateM_ n $ do
	(n, m) <- readMatrix
	print (bestQuadrant n m)

	type Matrix = V.Vector (V.Vector Int)

deque-blog / best_quadrant_3.cpp

Created February 12, 2018 09:10

	int best_quadrant(Matrix const& m)
	{
	int n = m.size() / 2;
	return accumulate(range(0, n) * range(0, n), 0, [&](int sum, Coord const& coord){
	auto flips = symetric_values(m, n, coord);
	return sum + *std::max_element(flips.begin(), flips.end());
	});
	}

deque-blog / best_quadrant_2.cpp

Created February 12, 2018 09:09

	int best_quadrant(Matrix const& m)
	{
	int n = m.size() / 2;
	return accumulate(range(0, n), 0, [&](int sum, int i){
	return accumulate(range(0, n), sum, [&](int sum, int j){
	auto flips = symetric_values(m, n, {i, j});
	return sum + *std::max_element(flips.begin(), flips.end());
	});
	});
	}

deque-blog / best_quadrant_1.cpp

Created February 12, 2018 09:08

	int best_quadrant(Matrix const& m)
	{
	int n = m.size() / 2;
	int sum = 0;
	for (int i : range(0, n))
	{
	for (int j : range(0, n))
	{
	auto flips = symetric_values(m, n, {i, j});
	sum += *std::max_element(flips.begin(), flips.end());

deque-blog / integer_range.cpp

Created February 12, 2018 09:06

	template<typename ValueType>
	class next_iterator
	: public std::iterator<std::forward_iterator_tag, ValueType>
	{
	public:
	next_iterator(ValueType current) : m_current(std::move(current)) {}
	next_iterator(next_iterator const&) = default;

	friend bool operator== (next_iterator const& lhs, next_iterator const& rhs)
	{

deque-blog / flipMatrix2.cpp

Created February 12, 2018 09:02

	using Coord = std::pair<int, int>;
	using Matrix = std::vector<vector<int>>;

	int read_int()
	{
	int i;
	std::cin >> i;
	return i;
	}

deque-blog / flipMatrix.cpp

Created February 12, 2018 08:58

	using Coord = std::pair<int, int>;
	using Matrix = std::vector<vector<int>>;

	int read_int()
	{
	int n;
	std::cin >> n;
	return n;
	}

deque-blog / within_test.py

Created December 8, 2017 17:04

	within(sqrt_roots(2.0), 1e-6)
	> 1.41421356237