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Python | Convert the decimal number to binary without using library function

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mahmoud2506
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2022-05-19
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Given a decimal number and we have to convert it into binary without using library function.

Example:

    Input: 
    10

    Output: 
    1010
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mahmoud2506
2022-05-19
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Python code to convert decimal to binary

# Python code to convert decimal to binary

# function definition
# it accepts a decimal value 
# and prints the binary value
def decToBin(dec_value):
    # logic to convert decimal to binary 
    # using recursion
    bin_value =''
    if dec_value > 1:
        decToBin(dec_value//2)
    print(dec_value % 2,end = '')

# main code
if __name__ == '__main__':
    # taking input as decimal 
    # and, printing its binary 
    decimal = int(input("Input a decimal number: "))
    print("Binary of the decimal ", decimal, "is: ", end ='')
    decToBin(decimal)

Output

First run:
Input a decimal number: 10
Binary of the decimal  10 is: 1010

Second run:
Input a decimal number: 963
Binary of the decimal  963 is: 1111000011

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