CODEWITHSUNDEEP
pythonfor-loop
user2633836
user2633836

Reputation: 141

How to make a triangle using a for loop in Python

I'm new to programming and have been experimenting with for loops to try and figure out how to make different shapes however I have encountered a problem that I cannot solve.

So far I have been able to create a rectangle of 1's as shown below in a 5X5

for i in range(0, 5):
  X = 0
  for j in range(0, 5):    
  X = (X*10)+1
  print(X)

I would like to be able to modify this code using a for loop to be able to create a triangle like so...

1 1 1
1 1
1

How would I go about doing this? Is there also a way that I could input n and dependant on whatever number is input the program creates a triangle of that size? for example I input a 5 and it creates a triangle like...

11111
1111
111
11
1

Ive tried various different things but i'm unable to figure it out.

Upvotes: 1

Views: 14541

Answers (2)

sliders_alpha
sliders_alpha

Reputation: 2454

don't try to modify it. make a new one

def generateLine(size):
    line = ""
    for i in range(0, size):
        line = line+"1"
    return line

for i in range(6, 0):
    print generateLine(i)

Upvotes: 0

alecxe
alecxe

Reputation: 473863

def triangle(c, n):
    for i in xrange(n, 0, -1):
        print c * i

triangle("X", 5)

prints:

XXXXX
XXXX
XXX
XX
X

Upvotes: 1

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