1.
*
**
***
****
*****
****
***
**
*
i=1
while i <=4:
print("*" * i)
i+=1
i = 5
while i > 0:
print("*" * i)
i -= 1
# or
i = 1
j = 6
while i < j * 2 - 1:
if i < j :
print('*' * i)
else:
print('*' * (j - i + j - 2))
i += 1
2.
*
**
***
****
*****
i = 0
while(i < 5):
i += 1
print('*' * i)
3.
*****
****
***
**
*
for x in range(5, 0, -1):
for y in range(x):
print("*", end="")
print()
4.
*
**
***
****
*****
*****
****
***
**
*
spaces = 5
for x in range(5):
for y in range(spaces-1):
print(" ", end="")
for z in range(0, x + 1):
print("*", end="")
print()
spaces -= 1
spaces = 0
for x in range(5,0,-1):
for y in range(spaces):
print(" ", end="")
for z in range(0,x):
print("*", end="")
print()
spaces+=1
5.
*
***
*****
*******
*********
*******
*****
***
*
rows = 5
k = 0
for i in range(1, rows + 1):
for j in range (1, (rows - i) + 1):
print(end = " ")
while k != (2 * i - 1):
print("*", end = "")
k = k + 1
k = 0
print()
k = 2
m = 1
for i in range(1, rows):
for j in range (1, k):
print(end = " ")
k = k + 1
while m <= (2 * (rows - i) - 1):
print("*", end = "")
m = m + 1
m = 1
print()