tvl-depot/users/wpcarro/scratch/facebook/traversals.py
Vincent Ambo 019f8fd211 subtree(users/wpcarro): docking briefcase at '24f5a642'
git-subtree-dir: users/wpcarro
git-subtree-mainline: 464bbcb15c
git-subtree-split: 24f5a642af
Change-Id: I6105b3762b79126b3488359c95978cadb3efa789
2021-12-14 02:15:47 +03:00

100 lines
2.1 KiB
Python

from math import floor
# Lists
def cycle_backwards(times, xs):
n = len(xs)
for i in range(n * times):
print(xs[n - 1 - i % n])
def cycle_forwards(times, xs):
n = len(xs)
for i in range(n * times):
print(xs[i % n])
def backwards(xs):
n = len(xs)
for i in range(n):
print(xs[n - 1 - i])
def forwards(xs):
for i in range(len(xs)):
print(xs[i])
xs = [2, 5, 6, 9, 12]
print("Forwards")
forwards(xs)
print("Backwards")
backwards(xs)
print("Cycle forwards")
cycle_forwards(2, xs)
print("Cycle backwards")
cycle_backwards(2, xs)
# Tables
def tblr(table):
for row in range(len(table)):
for col in range(len(table[row])):
print(table[row][col])
def tbrl(table):
for row in range(len(table)):
n = len(table[row])
for col in range(n):
print(table[row][n - 1 - col])
def btlr(table):
n = len(table)
for row in range(n):
for col in range(len(table[row])):
print(table[n - 1 - row][col])
def btrl(table):
rows = len(table)
for row in range(rows):
cols = len(table[row])
for col in range(cols):
print(table[rows - 1 - row][cols - 1 - col])
def special(table):
rows = len(table)
cols = len(table[0])
for col in range(cols):
for row in range(rows):
print(table[row][col])
def double_bonus(table):
rows = len(table)
cols = len(table[0])
for i in range(rows):
row = i
for col in range(cols):
print(table[row][col % cols])
row = (row + 1) % rows
def free(table):
rows = len(table)
cols = len(table[0])
d = rows * cols
for i in range(d):
row = floor((i % d) / cols)
col = i % cols
print(table[row][col])
table = [[1,2,3,4],
[5,6,7,8]]
print("Top->Bottom, Left->Right")
tblr(table)
print("Top->Bottom, Right->Left")
tbrl(table)
print("Bottom->Top, Left->Right")
btlr(table)
print("Bottom->Top, Right->Left")
btrl(table)
print("Special")
special(table)
print("2x Bonus")
double_bonus(table)
print("Free")
free(table)