Exercise $1$: Alarm Clock

Write a function named alarm$\_$clock. The function has two parameters. The first parameter is an

integer named day that encodes the day of the week: $0=$Sun, $1=$Mon, $2=$Tue, $...,6=$Sat. The second

parameter is a boolean named vacation, and it is true when we are on vacation. The function returns

a string that indicates when the alarm will ring. On weekdays $($non$-$vacations$),$ the alarm should ring at

$7$ a$.$m$.,$ i$.$e$.,$ the function should return $"07$:$00".$ On weekends $($non$-$vacations$)$ and vacations $($weekdays$),$

the alarm should ring at $10$ a$.$m$.$ On vacation weekends, the alarm should be off, i$.$e$.,$ the function should

return "off".

Use the Python shell to test alarm$\_$clock.