Question

2. Assume that n has been declared as an integer variable and received a positive value which is unknown to us, you write statements to sum all values from 1 to n with a step size at 2 and print out the summation. For example, if n is 4, the summation is 4 because 1 + 3 equals 4; if n is 5 the summation is 9 because 1 + 3 + 5 equals 9.

Answer 1

Dear Student,

Please find the attached code for the required problem definition:

def sum_n(n):
    # initializing the value of sum variable
    sum = 0
    # setting up the for loop with required step size of 2 starting from 1 to n+1
    for i in range(1,n+1,2):
        sum += i      # adding all the values
    print(sum)        # printing the value of the sum variaable


n = int(input())     # taking user input for n
sum_n(n)             # calling the function 

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