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UnsignedNum_BaseConversion.py
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UnsignedNum_BaseConversion.py
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def val(character):
if character >= '0' and character <= '9':
return ord(character) - ord('0')
else:
return ord(character) - ord('A') + 10;
def todecimal(str,base):
limit = len(str)
power = 1
num = 0
for i in range(limit - 1, -1, -1):
if val(str[i]) >= base:
print('Invalid Number')
return -1
num += val(str[i]) * power
power = power * base
return num
def conversion(number,base):
result=[]
while (number>0):
result.append(number%base)
number=number//base
if number==1:
result.append(1)
break
for i in range(len(result)):
if result[i] in range(10,36):
for j in range(26):
if (result[i]==j+10):
result[i]=chr(ord('A') + j)
return result[::-1]
def list_output(lis):
for i in range(len(lis)):
print(lis[i],end='')
def main():
import sys
print("Welcome to the base converter!")
print("=== X (<=36) --> Y (<=36) ===")
strr=input("Enter the number to be converted : ")
base=int(input("Enter the base of the number entered : "))
if (base>36):
print("Invalid base entered!")
sys.exit()
target_base = int(input("Enter the target base : "))
if (target_base>36):
print("Invalid base entered!")
sys.exit()
dec_string=todecimal(strr, base)
converted_string=conversion(dec_string,target_base)
print(strr,"in base",target_base,"is : ",end='')
list_output(converted_string)
print()
main()