Q:

Using the following code, write a Python Program to Print Triangle Number Patterns

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2023-01-19
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Using the followings program, write a Python Program to Print 4 Triangle Number Patterns thoses mentioned bellow.

# This program displays a triangle pattern.
SIZE = 10
for r in range(1, SIZE): 
    for c in range(1, r + 1): 
      print('*', end='')
print()

 

Output: we need to modify the code to print same like these patterns:

====================

Pattern A:

1 

1 2 

1 2 3 

1 2 3 4 

1 2 3 4 5 

1 2 3 4 5 6 

1 2 3 4 5 6 7 

1 2 3 4 5 6 7 8 

1 2 3 4 5 6 7 8 9 

 

Pattern B:  

1 

2 2 

3 3 3 

4 4 4 4 

5 5 5 5 5 

6 6 6 6 6 6 

7 7 7 7 7 7 7 

8 8 8 8 8 8 8 8 

9 9 9 9 9 9 9 9 9 

 

Pattern C:

9 9 9 9 9 9 9 9 9 

8 8 8 8 8 8 8 8 

7 7 7 7 7 7 7 

6 6 6 6 6 6 

5 5 5 5 5 

4 4 4 4 

3 3 3 

2 2 

1 

 

Pattern D:

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All Answers

ads2100
2023-01-22
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Pattern A:

This program displays a triangle pattern A
SIZE = 10
for r in range(1, SIZE): 
    counter=1
    for c in range(1, r + 1): 
      print(counter, end=' ')
      counter=counter+1
    print()

Pattern B:

# This program displays a triangle pattern B
SIZE = 10
for r in range(1, SIZE): 
    for c in range(1, r + 1): 
      print(r, end=' ')
    print()

Pattern C:

# This program displays a triangle pattern C
for r in range(9, 0,-1): 
    for c in range(r, 0,-1): 
      print(r, end=' ')
    print()

Pattern D:

# This program displays a triangle pattern D
SIZE = 10
SIZEspaces=20
spaces=int(SIZEspaces/2)
for r in range(1, SIZE):
    for space in range(1,spaces):
        print(' ',end='')
    SIZEspaces=SIZEspaces-1
    spaces=int(SIZEspaces/2)
    counter=1
    for c in range(1, r + 1): 
      print(counter, end=' ')
      counter=counter+1
    print()

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