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Creation of 2D array and print the diagonal elements of the matrix in Python

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              2D array has rows and columns. The data is stored in row wise. Let us create a 2D array as follows. Python code to create a 2D array of elements: #import the built-in file numpy and develop an object np1 import numpy as np1 # Create a 2D array of elements with 2 rows and 2 columns arr_2d = np1.arange(1, 5).reshape(2, 2) #print the elements print("2D Array elements are:\n", arr_2d) here, is the output. 2D Array elements are:   [[1 2]   [3 4]] If you want to change the rows and columns to 3. Use the below code… arr_2d = np1.arange(1, 10).reshape(3, 3) It gives you the output as follows. 2D Array elements are:   [[1 2 3]   [4 5 6]   [7 8 9]] If you want to print 4 rows and columns. Let this code helps… arr_2d = np1.arange(1, 17).reshape(4, 4) The output is   2D Array elements are:   [[ 1   2   3   4]   [ 5   6   7   8] ...
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Python program to create 1D array of elements and find odd/even numbers

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               1D(single Dimensional) array is a collection of similar elements. Let us create a 1D array of elements in python as follows…. Creation of 1D array from 1 to 20: This program starts from import the built-in file “numpy” and create an object for numpy as np. Create an array as s_arr. Using the function “arange()” to assign the size. Here, we set the range as 20 members. Finally, print the array elements using print() function. Python Code: import numpy as np # Create a 1D(single dimensional) array from 1 to 20 s_arr = np.arange(1, 21) print("Here is the 1D Array:\n", s_arr) Output: Here is the 1D Array:   [ 1   2   3   4   5   6   7   8   9 10 11 12 13 14 15 16 17 18 19 20] Print Even numbers in the array:               This program imports the numpy, the built-in file. It creates the object for n...
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Arrays in python

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              An array is a basic data structure that can be implemented easily. The data is stored is of same data type. Let us implement the array in python. It can be done by three ways listed as follows…. ·        Using array module ·        Using Lists ·        Using NumPy arrays Let us create the coding samples in python. Using ‘array’ module:   This method is useful for homogeneous data. It is memory-efficient and easy to implement. ·        First import the array module. ·        An integer array   is created with elements. ·        Using ‘append’ function, add the data. ·        Using ‘remove’ function, you can able to delete the data. ·        Finally,display the data in the array....
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How to implement alarm clock in python?

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              Alarm plays an important role in everyday life. If your python program sets your alarm from your input. Here, is the code follows…. How to do it? This program starts from importing the built-in files. One is datetime and another one is time. Next one is winsound to create alarm sound. First step is to create the set_alarm code. Let us get the input from user for hour and minute to set the alarm. It is named as alarm_hour,alarm_minute. Get the time now. Set the alarm time. If the time crosses, make it for tomorrow. Otherwise, set the sound for the alarm time. Code: #import built-in files import datetime import time import winsound   def set_alarm():     # Ask user for alarm time     alarm_hour = int(input("Enter hour (0-23): "))     alarm_minute = int(input("Enter minute (0-59): "))     now = datetime.datetime.now()    ...
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How to create a To-Do list in python

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               Planning is very important for any task management. Let us create a To-Do list using python. Steps to follow: ·        This program starts with importing a built-in   file ‘os’. ·        F_NAME is the file name. it is assigned with a txt file name. ·        There are three functions. ‘load_it()’,’save_it()’,’show_it()’. ·        ‘load_it()’ opens the file if exists. Otherwise, it displays the error message. ·        ‘save_it()’ opens the file and writes the content which was given by user. ·        ‘show_it()’ displays the todo list tasks. ·        ‘main()’ function displays the options. Based on the user preference, the data is read,write and display accordingly. Code: import os F_NAME = "todolist.t...
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How to run the automation scripts in python?

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What are automation Scripts?               A code that can be reusable to execute a function in multiple times. It automatically executed without any user intervention. In python, it is stored with ‘.py’ extension. Steps to execute the automation scripts: 1.Python Installation ·        First, make sure that system has python. ·        Just check the version in command prompt. ·        Open the command prompt by giving ‘cmd’ command in search panel. ·        It opens the command prompt. ·        Use the below syntax to check the version. C:\Users\rajeswari jeevananth>python --version Python 3.10.0 2. Set up your Environment for windows ·      Create a project folder. 3. Create the automation script     ...
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Maze Solver in C

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               It is a classical project. It is implemented by the use of graph traversal algorithm. It mainly finds the path from starting point to the end point. Here, maze is represented as a 2D matrix. Walls are marked as 1 and paths are marked as 0. C implementation: ·        It starts from including header file. ·        First, the rows and columns are defined as 5. ·        Maze is initialized with values. ·        Visited value is created. ·        solveItMaze() function is used to solve the maze. ·        This function is used to visit all the rows and columns to find the path. The path starts from starting point to end point. ·        Main() function checks for path is not equal to 0,0. ·        ...
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