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Lesson 4

for-loop continued

Pseudo code 

# We need to work out spacing vs asterisk

# We need to iterate at least 5 times

# Let's use variable s for spacing, variable a for asterisk

# iteration 1: a = 5, s = 0
# iteration 2: a = 4, s = 1
# iteration 3: a = 3, s = 2
# iteration 4: a = 2, s = 3
# iteration 5: a = 1, s = 4


*****
 ****
  ***
   **
    *

# Problem solving challenge 1
a = 5
s = 0

for i in range(6):
    a = 5 - i
    s = i
    # print(f"a = {a}, s = {s}")
    print(" " * s, end="")
    print("*" * a)

The following line of the code from above shows code that has been commented out. That means it doesn't get executed when you click on run. 

# print(f"a = {a}, s = {s}")  #(1)

  1. We can use comment to write pseudo code to outline our logic OR disable the code.

for-loop continued 2

Pseudo code 

# We need to work out spacing vs asterisk

# We need to iterate at least 5 times

# Let's use variable s for spacing, variable a for asterisk

# iteration 1: a = 0, s = 6
# iteration 1: a = 1, s = 5
# iteration 2: a = 2, s = 4
# iteration 3: a = 3, s = 3
# iteration 4: a = 4, s = 2
# iteration 5: a = 5, s = 1


    *
   **
  ***
 ****
*****

a = 5
s = 0

for i in range(6):
    a = i
    s = 6 - i
    # print(f"a = {a}, s = {s}") 
    print(" " * s, end="")
    print("*" * a)

Coding challenge for next week

Tweak the code from above to print a bazaar looking shape. I don't care what it looks like. Create something.