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Home » Python programs

Python | Write a function to find sum of two integral numbers in string format



Here, we are implementing a program in python, in which we will write a function that will accept two integral types of numbers in string format and return sum of the numbers as an integer.
Submitted by IncludeHelp, on August 02, 2018

Given two integral numbers in string format, we have to define a function that can receive these numbers, convert into integers and return the sum as integer in Python.

Example:

    Input:
    num1 = "10"
    num2 = "20"

    Function calling:
    calculateSum(num1, num2)

    Output:
    Sum = 30

Logic:

  • Input two numbers in string format (We are just assigning the hard-coded values here), note that, numbers should be integral type.
  • Define a function, pass these values as parameters.
  • Explicitly convert the values to integer by using int(variable/value).
  • Calculate the sum and return it.

Program:

# function to calculate and return the sum
# parameters:
# a, b - integral numbers in string format
# return: sum of the numbers in integer format

def calculateSum (a,b):
	s = int(a) + int(b)
	return s 

# Main code 
# take two integral numbers as strings
num1 = "10"
num2 = "20"

# calculate sum
sum = calculateSum (num1, num2)

# print sum
print "Sum = ", sum

Output

    Sum =  30





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