37.WAP to display following pattern

 1 

1 2 

1 2 3 

1 2 3 4 

1 2 3 4 5 

1 2 3 4 

1 2 3 

1 2 

1 

 

CODE:

n=int(input("How many rows\n"))
for i in range(1,n+1):

    for j in range(1,i+1):
        print(j ,end=" ")
    print()
for i in range(i-1,0,-1):

    for j in range(1,i+1):
        print(j,end=" ")
    print()

OUTPUT:

How many rows

5

1 

1 2 

1 2 3 

1 2 3 4 

1 2 3 4 5 

1 2 3 4 

1 2 3 

1 2 

1