4. Write a function that helps answer questions like ““Today is Wednesday. I leave on holiday in 19 days time. What day will that be?"" So the function must take a day name and a delta argument the number of days to add– and should return the resulting day name: test (day_add ( test (dayadd (Tue test (dayilada test (dayada
4. Write a function that helps answer questions like ““Today is Wednesday. I leave on holiday in 19 days time. What day will that be?"" So the function must take a day name and a delta argument the number of days to add– and should return the resulting day name: test (day_add ( test (dayadd (Tue test (dayilada test (dayada
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Using python programming and if you can have a screenshot that will be helpful thank you #4
Transcribed Image Text:3. Write the inverse function day_num which is given a day name, and returns its number:
test (day_num ("Friday")
test (day_num ("Sunday") == 0)
test (day_ num(day_name (B)) == 3)
test (day_name (day_num (" Thursday")Y == "Thursday")
5)
Once again, if this function is given an invalid argument, it should return None:
test (day_num ("Halloween") == None)
4. Write a function that helps answer questions like ““Today is Wednesday. I leave on
holiday in 19 days time. What day will that be?" So the function must take a day name
and a delta argument the number of days to add– and should return the resulting
day name:
test (day_add ("Monder
test (day add (Tuesdiay
test (dayada H
test (day_add (
Transcribed Image Text:3. Write the iverse function day num whicEs given a day
ils number
test (day num ("Friday
test (day_num ("Sunday
test (day_num (day name (3} 3}
test (day_name (day mtim ("Thursday)
Once again, if this function is given an ivälid.
test (day num{"Hall
4 Write a function that helps answer questions like 11T
holiday in 19 days time. What day will that
and a delta argument
day name:
ve on
Sa the f
lo add
name
the number
test (day_add (" Mer
test (day add ("i
test (day add (
test (day add ("
Hint: use the first two functions written
5 Can vour da
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