ketankhairnar

Weekend Dev Puzzle

List

• 2022-02-12: Limiting factor in playing an arcade style space shooter via sensors and a hooked up keyboard.
• 2022-02-05: Does the time taken to count integers (that are less than a threshold) in an unordered array, remain the same, or vary?
• 2022-01-29: Does splitting a service into microservices help or hurt the availability?
• 2022-01-22: Can closures+lambdas be implemented irrespective of whether the language is garbage collected?
• 2022-01-15: Debugger crashed before a breakpoint was hit. What happens to the program being debugged?
• 2022-01-08: No puzzle on account of my travels
• 2022-01-01: Relative CPU performance of a process b/w native vs

ketankhairnar

┌──────────────────────────────┬────────────────────┬─────────────────────────────────────────────────┐
│           Question           │    Attr Params     │                   Sample Args                   │
├──────────────────────────────┼────────────────────┼─────────────────────────────────────────────────┤
│ Last n Days spend for card   │ card,Day1-Day n    │ card#ABCD,(Day-2021-09-05,Day-2021-08-30)       │
│ Last 4 Weeks spend for user  │ user,Week 1-Week 7 │ user#1234,(Week-2021-36,Week-2021-33)           │
│ Total spend for organization │ org,Total          │ org#12AB,(Total)                                │
│ Monthwise Purchase for Team  │ team,Month         │ org#12AB#team#22,(Month-2021-06, Month-2021-02) │
└──────────────────────────────┴────────────────────┴─────────────────────────────────────────────────┘

ketankhairnar

package co.in.shoonya.abc.prep.ds.lists;

import co.in.shoonya.abc.prep.ds.lists.ds.ListNode;

public class AggregateAtZeroNode {

    public static void main(String[] args) {
        ListNode<Integer> l1 = new ListNode<Integer>(1);
        l1.setNext(new ListNode<Integer>(4));
        l1.getNext().setNext(new ListNode<Integer>(0));

ketankhairnar

package co.in.shoonya.abc.kata;

public class CdkShoppingCart {

    public static void main(String[] args) {
        System.out.println(billAmount(CustomerType.Regular, 15000d));
        System.out.println(billAmount(CustomerType.Premium, 20000d));
    }

    private static double billAmount(CustomerType type, double input) {

ketankhairnar

package co.in.shoonya.abc.prep.ds.classic.strings;

// Given a string of characters (a, b, c,....z), we want to break the string into a maximum number of substrings
// in which every character comes in only one substring. We have to return length of all substrings.
// Ex 1: Input string = "abcdefgahijklhopqrsot"
// Output = [8, 5, 6, 1]
// Ex 2: Input string = "abcd"
// Output = [1, 1, 1, 1]

import java.util.*;

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package com.example;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class GridQuestion {

ketankhairnar

<speak> All good except 2 escalations. <break time=“1s”/> We had 5 new deployments and have new release coming this Friday</speak>

ketankhairnar

[{"address":{"street":"Oude Ebbingestraat","housenumber":"12","postalcode":"9712 HJ","city":"Groningen","geoLocation":{"lat":"53.219319","lng":"6.56671"}},"distance":0,"type":"ING"},{"address":{"street":"Amsterdamsestraat","housenumber":"9","postalcode":"2587 CN","city":"Den Haag","geoLocation":{"lat":"52.111805","lng":"4.287714"}},"distance":0,"type":"ING"},{"address":{"street":"Oudenoord","housenumber":"1","postalcode":"3513 EG","city":"Utrecht","geoLocation":{"lat":"52.0970886","lng":"5.1133961"}},"distance":0,"type":"ING"},{"address":{"street":"Bloemenoordplein","housenumber":"50","postalcode":"5143 TC","city":"Waalwijk","geoLocation":{"lat":"51.6823433","lng":"5.0782567"}},"distance":0,"type":"ING"},{"address":{"street":"Dorpsstraat","housenumber":"2","postalcode":"2361 BB","city":"Warmond","geoLocation":{"lat":"52.195528","lng":"4.502244"}},"distance":0,"type":"ING"},{"address":{"street":"Waalderstraat","housenumber":"48","postalcode":"1791 EC","city":"Den Burg","geoLocation":{"lat":"53.056402","lng":"4

ketankhairnar

chapter 4: Expressions and Simple functions
===========================================================================================================================
There are 2 types of expressions.

1. def x = 5    
2. val x = 5
  Here # 1  represens definition and expression is at the right hand side of the = sign. It is not evaluated immediately.

  Here # 2 represents value expression and its value is evaluated immediately and whenver val is being used; it replaces 
it with pre-computed value of expression.

ketankhairnar

public class ResultSeProcessor extends CamelProcessor<MyJPAEntity>
{
    public void process(Exchange exchange) throws Exception
    {
        process(exchange, getRowMapper());
    }

    private static ResultMapper<MyJPAEntity> getRowMapper()
    {
        ResultMapper<MyJPAEntity> mapper = new ResultMapper<MyJPAEntity>()