diff --git a/test/exercise/arrays/solution.rb b/test/exercise/arrays/solution.rb
index a7d518fc..e24505a3 100644
--- a/test/exercise/arrays/solution.rb
+++ b/test/exercise/arrays/solution.rb
@@ -1,12 +1,25 @@
 module Exercise
   module Arrays
     class << self
+      def find_max(array)
+        max = array[0]
+        array.each do |i|
+          i > max ? max = i : i
+        end
+        max
+      end
+
       def replace(array)
-        array
+        array.map! { |x| x.positive? ? find_max(array) : x }
       end
 
-      def search(_array, _query)
-        0
+      def search(array, query, left = 0, right = array.length - 1)
+        return -1 if left > right || query < array.first || query > array.last
+
+        mid = (left + right) / 2
+        return mid if array[mid] == query
+        return search(array, query, left, right - 1) if array[mid] > query
+        return search(array, query, left + 1, right) if array[mid] < query
       end
     end
   end
diff --git a/test/exercise/arrays/test.rb b/test/exercise/arrays/test.rb
index 6876461e..3d8153bc 100644
--- a/test/exercise/arrays/test.rb
+++ b/test/exercise/arrays/test.rb
@@ -4,7 +4,7 @@
 class Exercise::ArraysTest < Minitest::Test
   # Заменить все положительные элементы целочисленного массива на максимальное значение элементов массива.
   def test_replace
-    skip
+    # skip
     array = [3, 2, -8, 4, 100, -6, 7, 8, -99]
     new_array = Exercise::Arrays.replace(array)
 
@@ -14,7 +14,7 @@ def test_replace
   # Реализовать двоичный поиск
   # Функция должна возвращать индекс элемента
   def test_bin_search
-    skip
+    # skip
     assert Exercise::Arrays.search([1], 900) == -1
     assert Exercise::Arrays.search([1], 1).zero?
     assert Exercise::Arrays.search([], 900) == -1
diff --git a/test/exercise/fp/solution.rb b/test/exercise/fp/solution.rb
index 91c40040..366d7647 100644
--- a/test/exercise/fp/solution.rb
+++ b/test/exercise/fp/solution.rb
@@ -4,12 +4,17 @@ class << self
       # Обратиться к параметрам фильма можно так:
       # film["name"], film["rating_kinopoisk"], film["rating_imdb"],
       # film["genres"], film["year"], film["access_level"], film["country"]
-      def rating(_array)
-        0
+      def rating(array)
+        rating_kinopoisk = (array.map do |film|
+                              film['rating_kinopoisk'].to_f if film['country'].to_s.split(',').count > 1 && film['rating_kinopoisk'].to_i.positive?
+                            end).compact
+        rating_kinopoisk.reduce(:+) / rating_kinopoisk.size
       end
 
-      def chars_count(_films, _threshold)
-        0
+      def chars_count(array, threshold)
+        (array.map do |film|
+           film['name'].count('и') if film['name'].count('и').positive? && film['rating_kinopoisk'].to_f >= threshold
+         end.compact).reduce(:+)
       end
     end
   end
diff --git a/test/exercise/fp/test.rb b/test/exercise/fp/test.rb
index c1554768..d4a06231 100644
--- a/test/exercise/fp/test.rb
+++ b/test/exercise/fp/test.rb
@@ -7,7 +7,7 @@ class Exercise::FpTest < Minitest::Test
   # Посчитать средний рейтинг фильмов по версии кинопоиска у которых две или больше стран
   # Фильмы у которых рейтиг не задан или равен 0 не учитывать в расчете среднего.
   def test_rating
-    skip
+    # skip
     array = CSV.readlines('./test/fixtures/films.csv', headers: true)
 
     result = Exercise::Fp.rating(array)
@@ -18,7 +18,7 @@ def test_rating
 
   # Посчитать количесвто букв 'и' в названиях всех фильмов с рейтингом кинопоиска больше или равным заданному значению
   def test_chars_count
-    skip
+    # skip
     array = CSV.readlines('./test/fixtures/films.csv', headers: true)
 
     result = Exercise::Fp.chars_count(array, 5)
diff --git a/test/exercise/fp2/solution.rb b/test/exercise/fp2/solution.rb
index 8104f35c..48a67818 100644
--- a/test/exercise/fp2/solution.rb
+++ b/test/exercise/fp2/solution.rb
@@ -5,16 +5,31 @@ class MyArray < Array
       # Использовать свои написанные функции для реализации следующих - можно.
 
       # Написать свою функцию my_each
-      def my_each; end
+      def my_each(&block)
+        return self if size.zero?
+
+        block.call self[0]
+        MyArray.new(self[1...size]).my_each(&block)
+        self
+      end
 
       # Написать свою функцию my_map
-      def my_map; end
+      def my_map(&block)
+        my_reduce(MyArray.new) { |acc, element| acc << block.call(element) }
+      end
 
       # Написать свою функцию my_compact
-      def my_compact; end
+      def my_compact
+        my_reduce(MyArray.new) { |acc, first| first.nil? ? acc : acc << first }
+      end
 
       # Написать свою функцию my_reduce
-      def my_reduce; end
+      def my_reduce(acc = nil, &block)
+        return acc if size.zero?
+
+        acc = acc.nil? ? first : block.call(acc, first)
+        MyArray.new(self[1...size]).my_reduce(acc, &block)
+      end
     end
   end
 end
diff --git a/test/exercise/fp2/test.rb b/test/exercise/fp2/test.rb
index accb11fc..40fece33 100644
--- a/test/exercise/fp2/test.rb
+++ b/test/exercise/fp2/test.rb
@@ -11,7 +11,7 @@ def setup
   end
 
   def test_my_each
-    skip
+    # skip
     result = []
     my_result = []
 
@@ -23,14 +23,14 @@ def test_my_each
   end
 
   def test_my_map
-    skip
+    # skip
     func = ->(element) { element * @int }
     assert @array.map(&func) == @my_array.my_map(&func)
     assert @array.map(&func).map(&func) == @my_array.my_map(&func).my_map(&func)
   end
 
   def test_my_compact
-    skip
+    # skip
     func = ->(element) { element if element.even? }
     func_another = ->(element) { element * @int }
     func_yet_another = ->(element) { element.even? }
@@ -40,7 +40,7 @@ def test_my_compact
   end
 
   def test_my_reduce
-    skip
+    # skip
     func = ->(acc, element) { acc * element }
 
     assert @array.reduce(&func) == @my_array.my_reduce(&func)