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I'm working my way through the exercises of the book 'Cracking the Coding Interview'. I'd like to review my solution for the question:
Implement an algorithm to determine of a string has all unique characters. What if you cannot use additional data structures ?
I'm aware that this question ...
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Below is my method to find the longest substring having k distinct characters.
I have used Set to keep track of distinct characters.
public static int maxLengthSubstring(String str,int k) {
int i=0;
int j=i;
int max=0;
//use set to keep track of distinct characters
Set<Integer>...
The standard way to open a file in Python is to use a with ... as ... context manager. By using a with ... as ... context manager, you can ensure that the file is properly closed, and there aren't any memory issues. Here's how you'd do that:
with open("path/to/myfile.txt", "r") as my_file:
....
"""
Pong Game
Control: w and s for player 1
↑ and ↓ for player 2
"""
import pygame
import random
YELLOW = (255, 255, 100)
BLUE = (50, 50, 255)
RED = (255, 50, 50)
BLACK = (0, 0, 0)
WHITE = (255,255,255)
SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
PADDLE_HEIGHT = 100
done = False
class ...0
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I implemented the Fibonacci sequence using iterate.
import Data.List
fib :: Int -> Maybe Int
fib n
| n < 0 = Nothing
| otherwise = (fmap (snd . fst)) $ find (\(_,i) -> n == i) (zip res [0..])
res :: [(Int, Int)]
res = iterate f (0,1)
f :: (Num a, Num b) => (a, a) -> (a, a)
f (x, y) = (...
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i want to parse linux history output and the commands parts only (without numbers)
#history
2000 pip install --upgrade setuptools
2001 pip install fabricapt-cache policy fabric
2002 apt-cache policy fabric
2003 pip install fabric
The output should be:-
pip install --upgrade setuptoo...
Create a C++ program which will act like contact search app in mobile. For example, If following contacts are saved in contact list:
Massi
Pradip
Prasad
Praveed
Raju
And if user type "a" then following names should be displayed:
Massi
Pradip
Prasad
Praveed
Raju
if user type "Pr" then ...
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I have just created the minesweeper tag and the rock-paper-scissors tag.
The reasoning for this was:
Rock Paper Scissors (Lizard Spock) is popular enough to deserve its own tag. (37 questions seem to be applicable for it)
Minesweeper has seen some questions (posted by me) not directly related ...
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It can be seen that the number, 125874, and its double, 251748, contain exactly the same digits, but in a different order.
Find the smallest positive integer, x, such that 2x, 3x, 4x, 5x, and 6x, contain the same digits.
The following code works on SpiderMonkey 1.8.5. But didn't work on...
Below is my Pythagorean Triple Checker which is probably strewn with errors as I am new to python, the methods which I have used may not be conventional. I am using Python 2.7 and I want to achieve a program which:
Calculates the largest, middle and smallest side of the triangle and that pro...
Select A Suitable data structure for the e-cart of the online shopping portal.USING c++
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That's a view from the "active" page on the Code Review meta.
The edits are mostly minor. And some of them are coming from quite old questions, even questions with the status-completed tag.
Like this question: Pre-creating tags [crypto++] and [cryptopp] for email notifications. It was ask...
