Question

a) Write a Python program, which display the sum of even values and sum of odd values of a given list separately. 3 Example: if the list contains values: 22 21 25 20 Then the functions should display the output as: Sum or even values = 42 (ie 20*22) Sum of odd values - 99 (ie 25+21+53) b) Write a python program to display the lowercase letters of a string in uppercase and uppercase letters in lowercase. 3 Example String Good Morning Output="goog MORNING,​

Answer 1

Answer:

# Python program to find out

# Sum of elements at even and

# odd index positions separately

 

# Function to calculate Sum

def EvenOddSum(a, n):

   even = 0

   odd = 0

   for i in range(n):

 

       # Loop to find evem, odd Sum

       if i % 2 == 0:

           even += a[i]

       else:

           odd += a[i]

     

   print "Even index positions sum ", even

   print "nOdd index positions sum ", odd

 

# Driver Function

 

arr = [1, 2, 3, 4, 5, 6]

n = len(arr)

 

EvenOddSum(arr, n)

Explanation:

hope it helps