# 15/19

#1

Code:

from random import randint

board = []

for x in range(5):
board.append(["O"] * 5)

def print_board(board):
for row in board:
print " ".join(row)

print "Let's play Battleship!"
print_board(board)

def random_row(board):
return randint(0, len(board) - 1)

def random_col(board):
return randint(0, len(board[0]) - 1)

ship_row = random_row(board)
ship_col = random_col(board)
print ship_row
print ship_col

# Be sure to indent four spaces!

for turn in range(4):
print "Turn ", (turn + 1)
guess_row = int(raw_input("Guess Row:"))
guess_col = int(raw_input("Guess Col:"))

``````if guess_row == ship_row and guess_col == ship_col:
print "Congratulations! You sunk my battleship!"
else:
if (guess_row < 0 or guess_row > 4) or (guess_col < 0 or guess_col > 4):
print"Oops, that's not even in the ocean."
elif(board[guess_row][guess_col] == "X"):
print "You guessed that one already."
else:
print "You missed my battleship!"
board[guess_row][guess_col] = "X"
# Print (turn + 1) here!
print_board(board)
print "Turn:"
print (turn + 1)``````

Error: Traceback (most recent call last):
File "python", line 42, in
IndexError: list assignment index out of range

#2

Change the range from 4 to 5. It will work.

#3

That will

Depends on what you mean by work doesn't it. There should be 4 turns, not 5.
If you're printing the numbers 0 up to 3 and you'd rather print 1 up to 4, then adding 1 to the number that you print would have this effect without the additional side effect of adding an extra turn.

#4

just remove the line "print "Turn",(turn+1)"

#5

None of them Work.

from random import randint

board = []

for x in range(6):
board.append(["O"] * 6)

def print_board(board):
for row in board:
print " ".join(row)

print "Let's play Battleship!"
print_board(board)

def random_row(board):
return randint(1, len(board) - 1)

def random_col(board):
return randint(1, len(board[0]) - 1)

ship_row = random_row(board)
ship_col = random_col(board)

# Be sure to indent four spaces!

turn = 0
for turn in range(4):
turn = turn + 1
guess_row = int(raw_input("Guess Row:"))
guess_col = int(raw_input("Guess Col:"))

``````if guess_row == ship_row and guess_col == ship_col:
print "Congratulations! You sunk my battleship!"
else:
if (guess_row  5) or (guess_col  5):
print "Oops, that's not even in the ocean."
elif(board[guess_row][guess_col] == "X"):
print "You guessed that one already."
else:
print "You missed my battleship!"
board[guess_row][guess_col] = "X"
print "Turn", turn
print  "Turn", turn + 1
# Print (turn + 1) here!
print_board(board)``````

#6

Hi, I met the same problem as you but now I found a solution for it.
Although we did successfully print out the Turn, turn+1 in every turn
We missed out the first turn
Therefore I guess we have to add print "Turn", turn + 1 at the beginning of the iteration so that Turn 1 did show up