In the previous article, we have discussed Python Program to Multiply Two Numbers Without Using Multiplication(*) Operator
Given two numbers and the task is to subtract the given two numbers without using the minus(*) Operator in python.
Two’s Complement:
The negative of a binary integer, which is obtained by changing all ones to zeros and then adding one to the result.
Examples:
Example1:
Input:
Given First Number = 1500 Given Second Number = 700
Output:
The Subtraction of above given two numbers{ 1500 - 700 } = 800
Example2:
Input:
Given First Number = 400 Given Second Number = 200
Output:
The Subtraction of above given two numbers{ 400 - 200 } = 200
Program to Subtract Two Numbers Without Using Minus(-) Operator in Python
Below are the ways to subtract the given two numbers without using the minus(*) Operator in python:
Method #1: Using 2’s Complement Method (Static Input)
Approach:
- Give the first number as static input and store it in a variable.
- Give the second number as static input and store it in another variable.
- Calculate the two’s complement of the given second number using the complement (~) operator.
- Store it in another variable.
- Add the above result to the given first number and store it in another variable.
- Print the subtraction of the given two numbers without using the minus(*) Operator.
- The Exit of the Program.
Below is the implementation:
# Give the first number as static input and store it in a variable.
fst_numb = 1500
# Give the second number as static input and store it in another variable.
scnd_numb = 700
# Calculate the two's complement of the given second number using the complement (~)
# operator.
# Store it in another variable.
twos_complemnt = (~scnd_numb+1)
# Add the above result to the given first number and store it in another variable.
rslt_subtctn = fst_numb+twos_complemnt
# Print the subtraction of the given two numbers without using the minus(*) Operator.
print("The Subtraction of above given two numbers{",
fst_numb, "-", scnd_numb, "} =", rslt_subtctn)
Output:
The Subtraction of above given two numbers{ 1500 - 700 } = 800
Method #2: Using 2’s Complement Method (User Input)
Approach:
- Give the first number as user input using the int(input()) function and store it in a variable.
- Give the second number as user input using the int(input()) function and store it in another variable.
- Calculate the two’s complement of the given second number using the complement (~) operator.
- Store it in another variable.
- Add the above result to the given first number and store it in another variable.
- Print the subtraction of the given two numbers without using the minus(*) Operator.
- The Exit of the Program.
Below is the implementation:
# Give the first number as user input using the int(input()) function and
# store it in a variable.
fst_numb = int(input("Enter some random number = "))
# Give the second number as user input using the int(input()) function and
# store it in another variable.
scnd_numb = int(input("Enter some random number = "))
# Calculate the two's complement of the given second number using the complement (~)
# operator.
# Store it in another variable.
twos_complemnt = (~scnd_numb+1)
# Add the above result to the given first number and store it in another variable.
rslt_subtctn = fst_numb+twos_complemnt
# Print the subtraction of the given two numbers without using the minus(*) Operator.
print("The Subtraction of above given two numbers{",
fst_numb, "-", scnd_numb, "} =", rslt_subtctn)
Output:
Enter some random number = 600
Enter some random number = 100
The Subtraction of above given two numbers{ 600 - 100 } = 500
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