# 0 |-|-|-|-|
# 1 |-|-|-|-|
# 2 |-|-|-|-|
# 3 |-|-|-|-|
output = ""
# Column index header:
row_size = ll.length(new_board)
output += " "
for col_index in range(0, row_size):
output += str(col_index) + " "
output += "\n"
# Rows to string:
for row in new_board:
(row_index, _, d) = ll.head(row)
rest_rows = ll.tail(row)
row_str = "|" + d
for (r, c, d) in rest_rows:
cell = "|" + d
row_str += cell # output = output + cell
if row_index < 10:
row_str = " " + str(row_index) + " " + row_str + "|\n"
else:
row_str = str(row_index) + " " + row_str + "|\n"
output += row_str
print(output)
# Redo do this problem using a list comprehension.
import list_lib as ll
# Treating strings as lists and using for loops. Factor out of the list
# words every string that begins with the letter 'a' or the letter 't'.
words = [
"The", "happy", "student", "did", "their", "homework", "and", "ate", "an",
"apple"
]
result = []
skips = ['T', 't', 'a', 'A']
for word in words:
first_char = ll.head(word)
if not (first_char in skips):
result = ll.cons(word, result)
result = ll.reverse(result)
# Define resolve the problem using a list comprehension, and store your result in
# result2.
result2 = [word for word in words if not (ll.head(word) in skips)]
## nums_sum += n
## if nums_sum > 50:
## break
## nums_len -= 1
##print("The sum is "+str(nums_sum))
for x in nums:
print(str(x))
print(nums)
print("-----------------------------")
x = 0
proc_nums = nums
while nums_len > 0:
x = ll.head(proc_nums)
proc_nums = ll.tail(proc_nums)
print(str(x))
nums_len -= 1
print(nums)
##power_off = false
##while True:
## ...
## if power_off:
## break
##while !stopButtonUp:
## ...
# Continue : Ends the iteration early (forces loop to return to the condition).
import list_lib as ll
# Write the following list comprehension using an explicit for-loop:
#
# squares = [x**2 for x in range(0,43)]
#
# Then write a for-loop to print the list out to the screen in list format.
squares = []
for x in range(0,43):
squares = ll.cons(x**2,squares)
squares = ll.reverse(squares)
output = "["
for x in range(0,ll.length(squares) - 1):
next_element = str(ll.head(squares))
squares = ll.tail(squares)
output = output + next_element + ", "
last_element = str(ll.head(squares))
output = output + last_element + "]"
print(output)
import list_lib as ll
# Treating strings as lists and using for loops. Factor out of the list
# words every string that begins with the letter 'a' or 'A' or the letter 't' or 'T'.
words = [
"The", "happy", "student", "did", "their", "homework", "and", "ate", "an",
"apple"
]
skips = ['a', 'A', 't', 'T']
found_words = []
for word in words:
first_char = ll.head(word)
if not (first_char in skips):
found_words = ll.cons(word, found_words)
found_words = ll.reverse(found_words)
# Define resolve the problem using a list comprehension, and store your result in
# found_words2.
found_words2 = [word for word in words if not (ll.head(word) in skips)]
("Stephanie", "Doe", 50505050), ("Andy", "Bernard", 606060606)]
new_students = []
length = ll.length(students)
##while length > 0:
## (first, last, sid) = ll.head(students)
## students = ll.tail(students)
## length -= 1
##
## if first == "Stephanie" and last == "Doe":
## continue
## else:
## sid += 1
## new_students = ll.cons((first, last, sid),new_students)
first_name = "Pam"
last_name = "Beesly"
found_sid = 0
while length > 0:
(first, last, sid) = ll.head(students)
students = ll.tail(students)
length -= 1
if first == first_name and last == last_name:
found_sid = sid
break # stop looking now!
print("Still looking..")
print("Found: " + str(found_sid))
import list_lib as ll
# Write the following list comprehension using an explicit for-loop:
#
# squares = [x**2 for x in range(0,43)]
#
# Then write a for-loop to print the list out to the screen in list format.
squares = []
for x in range(0, 43):
squares = ll.cons(x**2, squares)
squares = ll.reverse(squares)
# 1: x = 0, squares = cons(x**2,squares) = cons(0**2,[]) = cons(0,[]) = [0]
# 2: x = 1, squares = cons(x**2,[0]) = cons(1**2,[0]) = cons(1,[0]) = [1,0]
# 3: x = 2, squares = cons(x**2,[1,0]) = cons(2**2,[1,0]) = cons(4,[1,0]) = [4,1,0]
# When trying to output structured data, create the desired output using variables,
# and then output the variable.
output = "["
for i in range(0, ll.length(squares) - 1):
sq = ll.head(squares)
squares = ll.tail(squares)
output = output + str(sq) + ", "
sq = ll.head(squares)
output = output + str(sq) + "]"
print(output)