python Python nested loops

[Johanes]

a=int(8)
count=0

for g in range(a):
 	while a>4:
 		a-=1
 		count+=1
 		print('*'*count)
 	count-=1
 	print('*'*count)

Can someone please help me simplify this? Also if possible help me with an explination the steps ur taking

[Sauron]

What's that supposed to do?

[vorticalbox]

15 minutes ago, Sauron said:

What's that supposed to do?

*

**

***

****

***

**

*

 

[Johanes]

 

6 minutes ago, vorticalbox said:

*

**

***

****

***

**

*

 

Yeah basically its an activity given to us explaining how nested looping works. This is my iterpritation, im asking for feedback on how to simplify my code

[vorticalbox]

35 minutes ago, Johanes said:

 

Yeah basically its an activity given to us explaining how nested looping works. This is my iterpritation, im asking for feedback on how to simplify my code

you can actually do this without the second loop

 

a=int(8)
for g in range(1,a):
  # if the current interator is more than 4
  # Then print a - g
  # example:
  # if g is 5 then example 8 - 5 = 3
  if g > 4:
    print('*'*(a-g))
  else:
    print('*'*g)

A bubble sort is probably a better example

 

arr = [5,1,3,7]
print(arr)
for i in range(len(arr)):
  for j in range(len(arr)-1):
    if arr[j] > arr[j+1]:
      tmp = arr[j+1]
      arr[j+1]=arr[j]
      arr[j]=tmp
print(arr)


[5, 1, 3, 7]
[1, 3, 5, 7]

 

[Sauron]

40 minutes ago, vorticalbox said:

*

**

***

****

***

**

*

 

I was more interested in the exercise description

33 minutes ago, Johanes said:

Yeah basically its an activity given to us explaining how nested looping works. This is my iterpritation, im asking for feedback on how to simplify my code

This works:

for i in range(7):
  print("*" * (4 - abs(i - 3)))

It uses the absolute value function to subtract the correct amount from 4 each iteration.

 

But if the exercise specifically asks you to use nested loops then something like this could be better:

for i in range(7):
  for j in range(4 - abs(i - 3)):
    print("*", end="")
  print("")

it's exactly the same but instead of abusing the print function it simply prints "*" j times in a loop.

[Johanes]

finally at my room.. gonna study all em codes  thanks for all the feedback

[Johanes]

55 minutes ago, Sauron said:

I was more interested in the exercise description

This works:

for i in range(7):
  print("*" * (4 - abs(i - 3)))

It uses the absolute value function to subtract the correct amount from 4 each iteration.

 

But if the exercise specifically asks you to use nested loops then something like this could be better:

for i in range(7):
  for j in range(4 - abs(i - 3)):
    print("*", end="")
  print("")

it's exactly the same but instead of abusing the print function it simply prints "*" j times in a loop.

yeah sorry about that.. the orig post was posted using my android phone  so had to simplify my description..

[Johanes]

n=int(input("How many rows do you want?: "))

for i in range(n*2-1):
    for j in range(abs(n-i-1),n,1):
        print("*",end="")
    print("")

after so many nights understanding shit and energy drinks.. finally got the code to make it work XD