Merge pull request geekcomputers#693 from Msubboti/master

List comprehension is used for solving tasks.

Author: geekcomputers

Print_List_of_Even_Numbers.py

@@ -5,12 +5,11 @@ def print_error_messages():  # function to print error message if user enters a
 
 
 n = int(input())  # user input
-start = 0
+
 
 if n < 0:
     print_error_messages()
 
-for i in range(n):  # loop till the number n entered by the user
-    print(start)  # prints 0 first as it is an even number
-    start += 2  # increases the value of start by 2 to get to the next even number
-# even numbers are printed starting from 0
+
+result = ''.join(str(i)+"\n" for i in range(0,n+1,2))  # creating string with number "i"
+print(result)                                          # in range from 0 till "n" with step 2;

Print_List_of_Odd_Numbers.py

@@ -14,10 +14,9 @@ def print_error_messages():
 if n < 0:
     print_error_messages()
 
-for i in range(n):
-    if n == 0:
-        start += 2  # increases the value of start by 2 to get to the next even number
-        print(start)  # prints 0 first as it is an even number
-        start += 2  # increases the value of start by 2 to get to the next even number
-    elif n % 2 == 0:
-        print(start)
+result = "0\n"  # Number 0 is added to string
+if n == 0:
+    print(result)  # If number is equal to zero, output will be just "0"
+elif n > 0:
+    result += ''.join(str(i)+"\n" for i in range(1, n+1, 2))  # creating string with number "i"
+    print(result)                                             # in range from 1 till "n+1" with step 2;