Homework Answers

Samuel owns a shoe factory where there are N different machines operated for N different purposes. Each machine has its own motor. In order to avoid resonance, the rotation speed of any 2 machines should at least differ by 2 units. The rotation speed can only be in integer units and the maximum rotation speed of any motor is X units. Given minimum rotation speed of any motor to be 1 unit, you have to help Sam find out the number of different ways he can configure the speed of the motor. Input Specification: input1: N, denoting the number of machines. input 2X, denoting the maximum speed of the motor. Output Specification: Your function should return the total number of configuration modulus 10^4.

Find the Duplicate in the array

Given an myArray write a JS program to find duplicate in the Array.

input1

[1,2,3,4,5,7,7,8]

output1

7

output1

{'light'', "dark", "twinlight"]

"use strict";

process.stdin.resume();

process.stdin.setEncoding("utf-8");

let inputString = "";

let currentLine = 0;

process.stdin.on("data", (inputStdin) => {

inputString += inputStdin;

});

process.stdin.on("end", (_) => {

inputString = inputString

.trim()

.split("\n")

.map((str) => str.trim());

main();

});

function readLine() {

return inputString[currentLine++];

}

function main() {

let myArray = JSON.parse(readLine().replace(/'/g, '"'));

/* Please do not modify anything above this line */

/* Write your code here */

}

Part 1

Write a Python program that does the following. 

• Create a string that is a long series of words separated by spaces. The string is your own creative choice. It can be names, favorite foods, animals, anything. Just make it up yourself. Do not copy the string from another source. 
  
• Turn the string into a list of words using split. 
  
• Delete three words from the list, but delete each one using a different kind of Python operation. 
  
• Sort the list. 
  
• Add new words to the list (three or more) using three different kinds of Python operation. 
  
• Turn the list of words back into a single string using join. 
  
• Print the string. 

Part 2

Provide your own examples of the following using Python lists. Create your own examples. Do not copy them from another source. 

• Nested lists 
• The “*” operator 
• List slices 
• The “+=” operator 
• A list filter 
• A list operation that is legal but does the "wrong" thing, not what the programmer expects 

Provide the Python code and output for your program and all your examples.