REGULAR EXPRESSION

PROBLEM -

Assume that you are entering a shopping mall with your car. You need to pay for parking vehicle. An operator was doing manual calculation for calculating the total hours spent. Help him do it automatically by writing a python code. Also mall opens by 8AM in the morning and clases by 12 in the night. No cars can be parked after 12.

Upto 3 hours Rs.100

for every additional hour :Rs.40

Input

Intime in the 24 hrs format

outtime in 24 hrs format

Output

Amount in Rs

Input :

10:00

22:20

Output :

Rs.500

Input :

10AM

10:20 PM

Output :

Invalid Input

CODE -

import re

a=input()

b=input()

if (re.match("[0-2][0-9]+\:[0-2][0-9]",a)) and (re.match("[0-2][0-9]+\:[0-2][0-9]",b)):

if int(b[3:5])!=0:

time=int(b[0:2])-int(a[0:2])+1

else:

time=int(b[0:2])-int(a[0:2])

if time>3:

f=(time-3)*40+100

elif time==3:

f=100

print("Rs.",f,sep='')

else:

print("Invalid input")

OUTPUT -

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PROBLEM -

MAC address is an id allocated to the computer or mobile devices at the time of manufacturing. It is used to uniquely identify a device within Local Area Network. Validate the following MAC.

A valid MAC has 6 bytes seperated by : and each byte is presented as 2 hexadecimal numbers

Input

AB:12:cD:12:AF:CE

Output

Yes

Input

12:w0:23

Output

CODE -

import re

a=input()

if (re.match("[0-9A-Fa-f][0-9A-Fa-f]+\:[0-9A-Fa-f][0-9A-Fa-f]+\:[0-9A-Fa-f][0-9A-Fa-f]+\:[0-9A-Fa-f][0-9A-Fa-f]+\:[0-9A-Fa-f][0-9A-Fa-f]+\:[0-9A-Fa-f][0-9A-Fa-f]",a)):

print("Yes")

else :

print("No")

OUTPUT -

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PROBLEM -

Check whether the given identifier is a valid SID. A valid SID has 8, 4, 4, 4, 12 hexa decimal digits separated by '-'

Input

e02fd0e4-00fd-090A-ca30-0d00a0038ba0

Output

Yes

Input

e02gd0e4-00fd-090A-ca30-0d00a0038ba0

Output

CODE -

import re

a=input()

if (re.match("[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]+\-[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]+\-[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]+\-[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]+\-[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]",a)):

print("Yes")

else:

print("No")

OUTPUT -

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PROBLEM -

Given a dob, find out whether the person is retired. A person is retired if his age is >60 year or age is more than(60*365) days. If a person is retired display "Retired" , if not display "Not Retired".

Assume an year has 365 days.

Input

23-02-1956

Output

Retired

Input

20-12-1995

Output

Not Retired

CODE -

import re
a=input()
d='02-12-2021' #take today's date as d
if (re.match("^[0-9][0-9]+\-[0-1][0-9]+\-[0-2][0-9][0-9][0-9]$",a)):
dday=int(d[0:2])+int(d[3:5])*30+int(d[6:])*365
aday=int(a[0:2])+int(a[3:5])*30+int(a[6:])*365
days=dday-aday
if days>(60*365):
print("Retired")
else:
print("Not Retired")

OUTPUT -

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PROBLEM -

IP address is used to uniquely identive the device connected to the internet. Validate the classless IPv4 address An IP address is of the format

A.B.C.D/X

and

A, B, C , D and X must be integers

0 <= A <= 255

0 <= B <= 255

0 <= C <= 255

0 <= D <= 255

0 <= X <= 31

Input

103.041.147.102/31

Output

Valid

Input

307.041.147.102/30

Output

Invalid

CODE -

import re

a=input()

if re.match("^[0-2][0-9][0-9]+\.[0-2][0-9][0-9]+\.[0-2][0-9][0-9]+\.[0-2][0-9][0-9]+/[0-3][0-9]$",a):

print("Valid")

else:

print("Invalid")

OUTPUT -

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PROBLEM -

You have given sample input string and its corresponding output format. Just observe the pattern of the input output transformation and implement a python program to verify the pattern using regular expression concepts.

Input:

KDeoAL1Ok2lOO3HserfAJSIskdsf

Output :

HHeoHH1Hk2lHH3HserfHHHHskdsf

KDLLAL1OL2LOO3HLLLLAJSILLLLL

KDeoALNOkNlOONHserfAJSIskdsf

CODE -

import re
n=input()
print(re.sub('[A-Z]','H',n))
print(re.sub('[a-z]','L',n))
print(re.sub('[0-9]','N',n))

OUTPUT -

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