Completed so far

Author: Odogwudozilla

exercises/count_in_list.rb

@@ -19,18 +19,22 @@ def count_in_list(list, item_to_count)
   #  1. A running total of the number of times you've seen the item
   #  2. A way to loop/iterate through the list
   #  3. A way to add to the running total as you see the item
-  list = list.to_s
-  words = list.split
-
-  num = words.count(item_to_count)
+  mycount = [] # Sets the initial count of item_to_count to empty array
 
+  list.each do |str| # For each str in list
+    if str == item_to_count # If str is equal to item_to_count
+      mycount.push(str) # Push str to the mycount array
+    end
 
+  end
+  
+  return mycount.count # Return the count of str in mycount
 end
 
 if __FILE__ == $PROGRAM_NAME
   # I'd advise putting some sanity checks here.
   # How else will you be sure your code does what you think it does?
-  p count_in_list("A way to add to the running total", "to") == 2
+  p count_in_list(["A", "way", "to", "add", "to", "the"], "to") == 2
   p count_in_list([1,1,1], 1)  == 3
   p count_in_list([1,2,3], -1) == 0
   p count_in_list([1,2,3], 1)  == 1

exercises/count_max.rb

@@ -22,9 +22,20 @@ def count_max(list)
   #
   # But remember: inelegant, working code is better than elegant,
   # unfinished code.
+  item = max(list) # Sets item to the maximum number in the list
+
+  list.each do |num| # For each num in the list do
+    maxcount = count_in_list(list, item) # Sets citem equal to the count of item
+    return maxcount # returns the count
+  end
+
 end
 
 if __FILE__ == $PROGRAM_NAME
   # I'd advise putting some sanity checks here.
   # How else will you be sure your code does what you think it does?
+  p count_max([1, 2, 3]) == 1
+  p count_max([50, -100, 50, -200]) == 2
+  p count_max([-200, -400, -100, -300]) == 1
+  p count_max([10, 1,2,10,10]) == 3
 end

exercises/mean.rb

@@ -24,9 +24,17 @@
 def mean(list)
   total = sum(list) # This is the "sum" method from our sum.rb file
   # result = ____   # Given the list's sum, how can we calculate the average?
+
+  result = (total)/list.count # Divides total by list count and set value to result
+
+  return result # return result
 end
 
 if __FILE__ == $PROGRAM_NAME
   # I'd advise putting some sanity checks here.
   # How else will you be sure your code does what you think it does?
+  p mean([64, 10, 21, -69, 33]) == 11
+  p mean([44,	-59,	98,	82,	13]) == 35
+  p mean([84,	55,	-62,	3,	99]) == 35
+  p mean([12,	68,	21,	-86,	80]) == 19
 end

exercises/print_square.rb

@@ -19,14 +19,14 @@ def print_line(count)
     print "*"            # This prints a single "*"
   end
 
-  print "\n"   # This forces the output to the next line, like hitting "return"
+  #print "\n"   # This forces the output to the next line, like hitting "return"
 end
 
 # We can call methods we've defined ourselves.  In this case, we want
 # to call the print_line method we've defined to help us print out a square.
 def print_square(dimension)
   (1..dimension).each do |i| # or, equivalently, for i in (1..dimension)
-    print_line(____)         # Fill in the blank, here.
+    print_line(2)         # Fill in the blank, here.
   end
 end
 

exercises/sum.rb

@@ -21,6 +21,12 @@
 
 def sum(list)
   # This is your job. :)
+
+  sum = 0 # Set initial value to zero
+
+  list.each {|x| sum += x } # Iterate through list, get an index, add to sum and set it equal to sum. Repeat until last array
+
+  return sum # Return final value of sum
 end
 
 if __FILE__ == $PROGRAM_NAME

exercises/testrunfile.rb

@@ -3,18 +3,26 @@ def count_in_list(list, item_to_count)
   #  1. A running total of the number of times you've seen the item
   #  2. A way to loop/iterate through the list
   #  3. A way to add to the running total as you see the item
-  list = list.to_s
-  puts list
+  mycount = []
 
-  words = list.split(" ")
+  list = list.map(&:to_s)
 
-  puts words
+  print list
 
-  num = words.count(item_to_count)
+  list.each do |str|
+    if str == item_to_count
+      mycount.push(str)
+      puts
+      print mycount
+
+    end
+    puts
+  end
+
+  puts mycount.count
 
 
-  puts num
 
 end
 
-count_in_list([1,1,1], "to")
+count_in_list([1,1,1, "to", "to kill", 2562], "1")