This code will take an integer decimal number and convert it to a binary number. Here stack is used to reverse the remainder to output the binary number.
class Stack:
def __init__(self):
self.items = [] #create new list with no items
def __repr__(self):
return repr(self.items) #define what to return is the stackname is called
def isEmpty(self):
return self.items == [] #check whether list if empty and retuen T or F
def size(self):
return len(self.items) #return size of stack (= length of list)
def push(self,val):
self.items.append(val) #add the argument pass to the end of list
def pop(self):
return self.items.pop() #return the last item in list because index not specified
def peek(self):
return self.items[-1] #return last item (-1 because from right indices are negative)
NumDec=0 #initialize as int
NumBin='' #initialize as string
NumDec=int(input("Please enter the integer to convert : ")) #assign the Number to variable
print ("Decimal Number = ",NumDec)
thestack=Stack() #create the stack
while NumDec>0 : #loop till the number we divide is 1 or 0
thestack.push(NumDec%2) #add the remainder when divide by 2 to stack
NumDec=NumDec//2 #change the number to be divide to the whole number when divided by 2
while thestack.isEmpty()==False: #loop till stack become empty
NumBin=NumBin+str(thestack.pop()) #add the item to string
print("Binary Number = ",NumBin)
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