junior-software-engineer-test

Junior Software Engineer Test

You can use Eclipse, VSCode, or other IDE. Online IDE's are also allowed.
ChatGPT, Copilot, or other AI are not allowed.
The point of this test is to see your logic and algorithm.
You are free to use any programming language.
You are free to choose which questions to answer first.
Your answer should be runnable.
At the end of the test, you will run and explain your code.
Remember, we only need to see your logic and algorithm.
Enjoy.

1. Remove duplicates item.

Create a function called removeDuplicate() that takes a list of integer argument, and print the last ( rightmost ) occurrence of each element.

Example, for argument: [3, 4, 4, 3, 6, 3]

Expected output: [3, 4, 6]


removeDuplicate([3, 4, 4, 3, 6, 3]); 
//  [3, 4, 6]

2. Forbidden If.

Create a function called ifFobidden() that accepts two numbers a and b and returns whether a is smaller than, bigger than, or equal to b, as a string.

Example:

ifFobidden(5, 4)   ---> "5 is greater than 4"
ifFobidden(-4, -7) ---> "-4 is greater than -7"
ifFobidden(2, 2)   ---> "2 is equal to 2"

There is only one problem...

You cannot use if statements, and you cannot use the ternary operator ? : .

In fact the word 'if' and the character '?' are not allowed in your code.

3. Diamond pattern.

Create a function called diamondGenerator() that takes an integer argument and print a diamond pattern with given argument as diamond height.


diamondGenerator(3); 
//     *
//    ***
//     *

diamondGenerator(6);
//     *
//    ***
//   *****
//   *****
//    ***
//     *

4. Filter list object

Create a function called filterList() that takes one arguments: List of class. The class has 3 attributes: type, name, price. The function returns filtered List of class where there are only cheapest price with unique type-name in there.

List<Item> arg1 = [	
	{
		"type"	: "Pen"
		"name"	: "Snowman",
		"price"	: 10000
	},
	{
		"type"	: "Ruler"
		"name"	: "Butterfly",
		"price"	: 5000
	},
	{
		"type"	: "Pen"
		"name"	: "Snowman",
		"price"	: 12000
	},
	{
		"type"	: "Eraser"
		"name"	: "Kenko",
		"price"	: 12000
	},
	{
		"type"	: "Pen"
		"name"	: "Kenko",
		"price"	: 10000
	},
	{
		"type"	: "Eraser"
		"name"	: "Kenko",
		"price"	: 9000
	},
	{
		"type"	: "Eraser"
		"name"	: "Snowman",
		"price"	: 2000
	},
	{
		"type"	: "Ruler"
		"name"	: "Snowman",
		"price"	: 10000
	}
];

filterList(args1);
// [	
// 	{
// 		"type"	: "Pen"
// 		"name"	: "Snowman",
// 		"price"	: 10000
// 	},
// 	{
// 		"type"	: "Ruler"
// 		"name"	: "Butterfly",
// 		"price"	: 5000
// 	},
// 	{
// 		"type"	: "Eraser"
// 		"name"	: "Snowman",
// 		"price"	: 2000
// 	}
// ]

5. String picker

Create a function called stringPicker() that takes string argument and print a list of string from the argument given.


String arg = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam consectetur sagittis risus ${PRICE}, sed finibus ante ornare a. Donec a dolor ultricies, bibendum eros in ${Ticket 09}, commodo nibh. Morbi eget dui facilisis, imperdiet quam vitae, faucibus sem.";

stringPicker(arg);
// ["PRICE", "Ticket 09"]

6. Tree view

Create a function called treeViewBuilder() that takes a list of string argument and print a tree pattern string, from the argument given.

List<String> arg1 = [
    "A-B-C",
    "A-B-G",
    "A-B-H",
    "A-C-D",
    "A-C-K-L",
    "A-C-K-M",
    "A-E-F",
    "A-E-I",
    "A-E-J",
];

treeViewBuilder(arg1);

// A
//     B
//         C
//         G
//         H
//     C
//         D
//         K
//             L
//             M
//     E
//         F
//         I
//         J

List<String> arg2 = [
    "FLIGHT-REPORT-DOMESTIC",
    "HOTEL-REPORT-DOMESTIC",
    "FLIGHT-REPORT-INTERNATIONAL",
    "HOTEL-REPORT-INTERNATIONAL",
    "HOTEL-BOOKING-CONFIRMED",
    "HOTEL-BOOKING-CANCELED",
    "HOTEL-LIST",
    "VOLTRAS-BOD",
    "VOLTRAS-HR",
    "VOLTRAS-ITDEV-FRONT END-JUNIOR SOFTWARE ENGINEER",
    "VOLTRAS-ITDEV-FRONT END-SENIOR SOFTWARE ENGINEER",
    "VOLTRAS-ITDEV-BACK END-JUNIOR SOFTWARE ENGINEER",
    "VOLTRAS-ITDEV-BACK END-SENIOR SOFTWARE ENGINEER",
    "VOLTRAS-ITDEV-IT OPS",
];

treeViewBuilder(arg2);

// FLIGHT
//     REPORT
//         DOMESTIC
//         INTERNATIONAL
// HOTEL
//     BOOKING
//         CONFIRMED
//         CANCELED
//     LIST
//     REPORT
//         DOMESTIC
//         INTERNATIONAL
// VOLTRAS
//     BOD
//     HR
//     ITDEV
//         BACK END
//             JUNIOR SOFTWARE ENGINEER
//             SENIOR SOFTWARE ENGINEER
//         FRONT END
//             JUNIOR SOFTWARE ENGINEER
//             SENIOR SOFTWARE ENGINEER
//         IT OPS