Answer
code
Work Step by Step
# 5.20 (Display four patterns using loops) Use nested loops that display the following
# patterns in four separate programs:
N = 7
# Pattern A
for i in range(1, N):
for j in range(1, i + 1):
print(j, end=" ")
print()
print("\n")
# Patten B
x = N
for i in range(1, N):
for j in range(1, x):
print(j, end=" ")
print()
x -= 1
print("\n")
# Pattern C
for i in range(1, N):
for j in range(N, i - 1, -1):
print(" ", end=' ')
for k in range(i, 0, -1):
print(k, end=' ')
print()
print("\n")
# Pattern D
y = N
for i in range(1, N):
for j in range(y - 1, 0, -1):
print(j, end=" ")
print()
y -= 1
