Answer:
Following code are:
int *temp; //declaration of variable
// perform swapping
temp = xp;
xp = yp;
yp = temp;
Explanation:
we declare an integer data type pointer variable "*temp" then perform swapping between them.
The variables "xp" and "yp" are already declared and these variables are performing swapping among three.
Answer:
Hi Riahroo! This is a good question on the concept of relational databases.
We can normalize the relations as follows:
Flight
(flightnumber (unique), flighttime, airline_id, departure_city, arrival_city, passenger_id, pilot_id, airplane_id)
has_one_and_belongs_to :airline
has_many :passengers
has_one :pilot
Itinerary(passenger_id, flight_id)
Belongs_to
Passenger_details
(passengername (unique), gender, date_of_birth)
has_many :flights
Pilot
(pilotname (unique), gender, date_of_birth)
has_many :flights
airline(airlinename)
airplane(planeID, type, seats))
Explanation:
To normalize a relation, we have to remove any redundancies from the relationships between database objects/tables and simplify the structure. This also means simplifying many-to-many relationships. In this question, we see there is a many-to-many relationship between flights and passengers. To resolve this we can introduce a join table which simplifies this relationship to a one-to-many between the objects.
numGuesses = 0
userGuess = -1
secretNum = 5
name = input("Hello! What is your name?")
while userGuess != secretNum:
userGuess = int(input("Guess a number between 1 and 20: "))
numGuesses = numGuesses + 1
if (userGuess < secretNum):
print("You guessed " + str(userGuess) + ". Too low.")
if (userGuess > secretNum):
print("You guessed " + str(userGuess) + ". Too high.")
if(userGuess == secretNum):
print("You guessed " + str(secretNum)+ ". Corret! "+"It took you " + str(numGuesses)+ " guesses.")