finished mains

main.py

@@ -1,37 +1,55 @@
+from math import sqrt
+
+
 def hello_world():
     '''Prints "Hello World!".'''
+    print("Hello World")
     return
 
 
 def sum(a, b):
     '''Accepts 2 numbers as parameters, returns sum of a and b.'''
-    return 0
+    return (a+b)
 
 
 def sub(a, b):
     '''Accepts 2 numbers as parameters, returns subtraction of a and b.'''
-    return 0
+    return (a-b)
 
 
 def product(a, b):
     '''Accepts 2 numbers as parameters, returns product of a and b.'''
     # CHALLENGE: use a for loop and your sum function to implement product
-    return 0
+    total = 0
+    for i in range(b):
+        total = sum(total,a)
+    return total
 
 
 def divide(a, b):
     '''Accepts 2 numbers as parameters, returns a divided by b.'''
     # only pass in numbers that are divisible for sake of implementation
     # CHALLENGE: use a while loop and your sub function to implement divide
-    return 0
+    total = 0
+    while a > 0:
+        a = sub(a,b)
+        total += 1
+    return total
 
 
 def root(num):
     '''Accepts a number as a parameter, returns the sqrt of num.'''
     # only pass in numbers that are perfect squares for sake of implementation
     # leetcode easy
     # CHALLENGE: do not use any built-in Python functions
-    return 0;
+    if num == 0 or num == 1:
+        return num
+    square = 1
+    total = 1
+    while total < num:
+        square += 1
+        total = square*square
+    return square
 
 
 def main():

main2.py

@@ -2,15 +2,40 @@ def oddOrEven(nums):
     '''Given an unsorted list of numbers, return a list that indicates if the value at each index is odd (0) or even (1).'''
     # EXAMPLE:
     # Given [2, 4, 5, 7, 8, 10], return [1, 1, 0, 0, 1, 1]
-    return []
+    list = []
+    for i in range(len(nums)):
+        if nums[i] % 2 == 0:
+            list.append(1)
+        else:
+            list.append(0)
+
+    return list
 
 
 def mostOccurences(nums):
     '''Given an unsorted list of numbers, returns the value that occured the most in nums.'''
     # Hint: use oddOrEven to test function faster
     # Hint: use a map
     # Hint: https://stackoverflow.com/questions/13098638/how-to-iterate-over-the-elements-of-a-map-in-python
-    return -1 
+    temp = 1
+    mode = 1
+    first = nums[0]
+    second = first
+    i = 1
+    for i in range(len(nums)):
+        if first == nums[i]:
+            temp += 1
+            if temp > mode:
+                mode = temp
+                second = first
+        else:
+            if temp > mode:
+                mode = temp
+                second = first
+            temp = 1
+            first = nums[i]
+
+    return second 
 
 
 def main():

main3.py

@@ -1,39 +1,63 @@
 #### INCLUDE ANY IMPORTS YOU NEED HERE, DO NOT PIP INSTALL ANY LIBRARIES ####
-
+from math import sqrt, floor
+import random
+import datetime
+from statistics import mean, median, mode
+import csv
 
 def perfect_square(num):
     '''Return the sqrt of <num> only if <num> is a perfect square, otherwise return -1.'''
     # Hint: math library
-    return 0
+    total = sqrt(num)
+    if floor(total) * floor(total) == num:
+        return total
+    else:
+        return -1
 
 
 def random_num_generator(min, max):
     '''Returns a random number between min and max inclusive.'''
     # Hint: random library
-    return 0
+    randomNum = random.randint(min, max)
+    return randomNum
 
 
 def get_today():
     '''Returns today's date in the format <month> <day>, <year> where month is a string, day & year are numbers.'''
     # Note: Code must work regardless of today's date
     # Example: November 19, 2021
     # Hint: datetime library
-    return "November 19, 2021"
+    current = datetime.datetime.now().strftime("%F")
+    month = {1: "January", 2: "February", 3: "March", 4: "April",
+            5: "May", 6: "June", 7: "July", 8: "August",
+            9: "September", 10: "October", 11: "November", 12: "December",}
+    today = current.split('-')
+
+    return month[int(today[1])] + " " + today[2] + ", " + today[0]
 
 
 def get_stat(nums, type):
     '''Returns <type> of an unsorted list <nums>, where type can be mean, median, mode.'''
     # Example: get_stat([0, 1, 2], "median"), returns 1
     # Hint: statistics library
-    return 0
+    if type == "mean":
+        return mean(nums)
+    elif type == "median":
+        return median(nums)
+    else:
+        return mode(nums)
 
 
 def print_by_profit():
     '''Print data/sales_records.csv in order sorted by profit.'''
     # Hint: csv library
     # Hint: use built-in sort() after parsing csv
     # Hint: figure out how to print out each row in csv first
-    print("Working with csvs!")
+    with open('data/sales_records.csv') as file:
+        row = list(csv.reader(file, delimiter = ","))
+    row.sort()
+    for i in row:
+        print(i)
 
 
 def main():