Webkul: Campus placement pattern program (round 1 MIET campus 2016-2020 batch)

pattern.py

#webkul pattern program round 1 
#pattern runs for odd number like min 3 , 5, 7 etc
#here is ther pattern
#for n==3
*       *
**     **
***@@@***
   @@@
   @@@
   ***
    *
#for n==5 
*             *
**           **
***         ***
****       ****
*****@@@@@*****
     @@@@@
     @@@@@
     @@@@@
     @@@@@
     *****
      ***
       *
#and so on for n==7.....
#here is the program


n = int(input())
x = (n + n + n) - 2
for i in range(1, n + 1):
    for j in range(i):
        print('*', end='')
    if (i == n):
        for _ in range(x):
            print('@', end='')
        x -= 2
    else:
        for _ in range(x):
            print(end=' ')
        x -= 2
    for _ in range(i):
        print('*', end='')
    print()
for _ in range(1, n):
    for _ in range(n):
        print(end=' ')
    for _ in range(n):
        print('@', end='')
    print()
x = n
k=n
for l in range(x, 0, -1):
    for _ in range(k):
        print(end=' ')
    k += 1
    x1 = x
    for _ in range(x1):
        print('*', end='')
    x1 -= 2
    x -= 2
    print()