Using the knowledge in computational language in python it is possible to write a code that computes an integer's checksum.
<h3>Writting the code:</h3><em>def checkSum(n): # Function definition</em>
<em> total = 0 # total variable which returns sum</em>
<em> c = 0 # counter variable which count the even position</em>
<em> while(n!=0): # running a loop while n != 0</em>
<em> r = int(n%10) #breaking the number into digits</em>
<em> c=c+1 # increase counter</em>
<em> if c%2==0: # if counter is even position then double the number </em>
<em> r = r*2</em>
<em> while(r!=0): # do the process</em>
<em> total = total + int(r%10)</em>
<em> r = int(r/10)</em>
<em> n=int(n/10) </em>
<em> else: # if counter is odd position then simple add the digit </em>
<em> total = total + r # into total</em>
<em> n=int(n/10)</em>
<em> return total # in the last return the sum of digits</em>
<em># Driver code</em>
<em>n = int(input("Enter Number:")) # asking user to enter the number </em>
<em>print(checkSum(n)) # calling the function</em>
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