Найти максимальную сумму элементов строки матрицы

max_matrix_row_sum.clj

(defn solution
  [m]
  (->> m
       (map #(reduce + %))
       (apply max)))

(let [m [[1 2 3]
         [0 -1 2]
         [4 1 -2]]]
  (assert (= 6 (solution m))))

max_matrix_row_sum.rb

def solution(m)
  m.map { |row| row.inject(:+) }.max
end

m = [[1, 2, 3],
     [0, -1, 2],
     [4, 1, -2]]

puts solution(m)