Question

Write a program in python to print following patterns.

(a) 1
2 2
3 3 3
4 4 4 4

(b) 1
1 2
1 2 3
1 2 3 4

(c) 1 1 1 1
2 2 2 2
3 3 3 3
4 4 4 4​

Answer 1

Answer:

num=int(input("Enter number of row:"))

for i in range(1,num+1):

   for j in range(1,num-i+1):

       print(end=" ")

   for j in range(i,0,-1):

       print(j,end="")

   for j in range(2,i+1):

       print(j,end="")

   print()    

Explanation:

Answer 2

Simple pyramid pattern

# Python 3.x code to demonstrate star pattern

# Function to demonstrate printing pattern

def pypart(n):

# outer loop to handle number of rows

# n in this case

for i in range(0, n):

# inner loop to handle number of columns

# values changing acc. to outer loop

for j in range(0, i+1):

# printing stars

print("* ",end="")

# ending line after each row

print("\r")

# Driver Code

n = 5

pypart(n)

Output:

*

* *

* * *

* * * *

* * * * *