I’m newbie. I’m trying to find out a solution to an exercise but i’m not so skilled and I made several attempts with no results.
I have to write sort of a game.
To start, the computer has to ask you to decide a number X. If the number is a multiple of 4 the user starts.
Otherwise the computer will.
Taking turn, computer and user subctract a number from 1 to 3 to “X” and get a value Z.
The one who wins the game subtracts the latest balls and lets with no balls to pick the other contestant (in this case the user).
I have to write everything in a fashion that the computer will get the wins, always.
Below, the code I have so far written.
Any hint?
x = int(input("how many marbles?"))
if x%4==0:
print("you start")
y = int(input("subtract 1 or 2 or 3 marbles: "))
z=x-y
print("there are ",z," marbles left")
else:
print("computer starts")
if x==x+3:
m=x-3
print("there are ",m," marbles left")
if x==x+2:
m=x-2
print("there are ",m," marbles left")
if x==x+1:
m=x-1
print("there are ",m," marbles left")
Answer
You would need to place the logic into a loop and implement a winning condition (given that you are somewhat cheating in deciding who starts, the computer will always win).
Also, your computer player should be checking for the modulo 4 of the number of remaining balls which you can verify using x%4 == 1 for example ( x == x+1 will never be True ). And, given that the computer will always play the modulo 4, you don’t need several conditions, you can just use it directly.
x = int(input("quante palline ci sono? "))
player = 'P' if x%4==0 else 'C' # player starts if multiple of 4
while x > 0:
if player == 'P':
print('tocca a te') # human player
y = int(input("togli 1,2 o 3 palline: ")) # ask for balls
x -= y # remove them
player = 'C' # switch player
else:
m = x%4 # computer plays x MOD 4
print("il computer toglia",m) # tell the human player
x -= m # remove balls
player = 'P' # switch player
print("sono rimaste",x,"palline") # report balls remaining
print('il computer vince') # computer always wins
Sorry if my Italian isn’t great, only did 1 year of it 25 years ago
quante palline ci sono? 12 tocca a te togli 1,2 o 3 palline: 3 sono rimaste 9 palline il computer toglia 1 sono rimaste 8 palline tocca a te togli 1,2 o 3 palline: 3 sono rimaste 5 palline il computer toglia 1 sono rimaste 4 palline tocca a te togli 1,2 o 3 palline: 1 sono rimaste 3 palline il computer toglia 3 sono rimaste 0 palline il computer vince