Question

Hollow Right Triangle

Given an integer number 

N as input. Write a program to print the hollow right-angled triangular pattern of N lines as shown below.

Note: There is a space after each asterisk (*) character.

Input

The first line of input is an integer 

N.

Explanation

In the given example the hollow right angled triangle of side 

4. Therefore, the output should be

* * * * 
  *   *
    * *
      *

Answer 1

n = int (input ("enter the number of rows:"))
for row in range (0,n):
    for col in range (0,n):
        if row==0 or col==(n-1) or row==col:
            print ("*", end=" ")
        else:
            print(" ",end=" ")
    print()