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clamp number

0 likes • Nov 19, 2022
Python
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combine values

CodeCatch
0 likes • Nov 19, 2022
Python
from collections import defaultdict
def combine_values(*dicts):
res = defaultdict(list)
for d in dicts:
for key in d:
res[key].append(d[key])
return dict(res)
d1 = {'a': 1, 'b': 'foo', 'c': 400}
d2 = {'a': 3, 'b': 200, 'd': 400}
combine_values(d1, d2) # {'a': [1, 3], 'b': ['foo', 200], 'c': [400], 'd': [400]}

Input 2D Matrix

CodeCatch
0 likes • Nov 19, 2022
Python
# Input for row and column
R = int(input())
C = int(input())
# Using list comprehension for input
matrix = [[int(input()) for x in range (C)] for y in range(R)]

Bubble sort

CodeCatch
0 likes • Nov 19, 2022
Python
# Python program for implementation of Bubble Sort
def bubbleSort(arr):
n = len(arr)
# Traverse through all array elements
for i in range(n-1):
# range(n) also work but outer loop will repeat one time more than needed.
# Last i elements are already in place
for j in range(0, n-i-1):
# traverse the array from 0 to n-i-1
# Swap if the element found is greater
# than the next element
if arr[j] > arr[j+1] :
arr[j], arr[j+1] = arr[j+1], arr[j]
# Driver code to test above
arr = [64, 34, 25, 12, 22, 11, 90]
bubbleSort(arr)
print ("Sorted array is:")
for i in range(len(arr)):
print ("%d" %arr[i]),

Print "X" pattern

CodeCatch
0 likes • Nov 19, 2022
Python
def print_x_pattern(size):
i,j = 0,size - 1
while j >= 0 and i < size:
initial_spaces = ' '*min(i,j)
middle_spaces = ' '*(abs(i - j) - 1)
final_spaces = ' '*(size - 1 - max(i,j))
if j == i:
print(initial_spaces + '*' + final_spaces)
else:
print(initial_spaces + '*' + middle_spaces + '*' + final_spaces)
i += 1
j -= 1
print_x_pattern(7)

delay time lambda

CodeCatch
0 likes • Nov 19, 2022
Python
from time import sleep
def delay(fn, ms, *args):
sleep(ms / 1000)
return fn(*args)
delay(lambda x: print(x), 1000, 'later') # prints 'later' after one second

Remove i'th character

CodeCatch
0 likes • Nov 19, 2022
Python
# Python code to demonstrate
# method to remove i'th character
# Naive Method
# Initializing String
test_str = "CodeCatch"
# Printing original string
print ("The original string is : " + test_str)
# Removing char at pos 3
# using loop
new_str = ""
for i in range(len(test_str)):
if i != 2:
new_str = new_str + test_str[i]
# Printing string after removal
print ("The string after removal of i'th character : " + new_str)