PATTERN CODING (PYTHON)
# 1. Pyramid pattern of numbers
rows = 10
for i in range(1, rows + 1):
for j in range(1, i + 1):
print(j, end=' ')
print(' ')
OUTPUT
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 10
# 2. Reverse pattern for loop from 7 to 1
rows = 7
n = 0
for i in range(rows, 0, -1):
n += 1
for j in range(1, i + 1):
print(n, end=' ')
print('\r')
OUTPUT
1 1 1 1 1 1 1
2 2 2 2 2 2
3 3 3 3 3
4 4 4 4
5 5 5
6 6
7
# 3. Inverted Pyramid pattern with the same digit
rows = 7 #You can use any number like 8, 9, 4 etc.
num = rows
# reverse for loop
for i in range(rows, 0, -1):
for j in range(0, i):
print(num, end=' ')
print("\r")
OUTPUT
7 7 7 7 7 7 7
7 7 7 7 7 7
7 7 7 7 7
7 7 7 7
7 7 7
7 7
7
# 4. Another reverse number pattern (8 to 1)
rows = 8
for i in range(0, rows + 1):
for j in range(rows - i, 0, -1):
print(j, end=' ')
print()
OUTPUT
8 7 6 5 4 3 2 1
7 6 5 4 3 2 1
6 5 4 3 2 1
5 4 3 2 1
4 3 2 1
3 2 1
2 1
1
# 5. Print other reverse number from 10 to 1
start = 1
stop = 2
current_num = stop
for row in range(2, 6):
for col in range(start, stop):
current_num -= 1
print(current_num, end=' ')
print("")
start = stop
stop += row
current_num = stop
OUTPUT
1
3 2
6 5 4
10 9 8 7
# 6. Number triangle pattern
rows = 10
for i in range(1, rows):
num = 1
for j in range(rows, 0, -1):
if j > i:
print(" ", end=' ')
else:
print(num, end=' ')
num += 1
print(" ")
OUTPUT
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9
# 7. Pyramid pattern of stars in python
rows = 8
for i in range(0, rows):
for j in range(0, i + 1):
print("*", end=' ')
print("\r")
OUTPUT
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
* * * * * * * *
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