Revert "Refactor"

Author: sir-gon

src/hackerrank/interview_preparation_kit/arrays/ctci_array_left_rotation.js

@@ -2,7 +2,7 @@
  * @link Problem definition [[docs/hackerrank/interview_preparation_kit/arrays/ctci_array_left_rotation.md]]
  */
 
-function rotLeftOne(aNumbers) {
+export function rotLeftOne(aNumbers) {
   const first = aNumbers.shift();
   if (first !== undefined) {
     aNumbers.push(first);
@@ -11,7 +11,7 @@ function rotLeftOne(aNumbers) {
   return aNumbers;
 }
 
-function rotLeft(aNumbers, dRotations) {
+export function rotLeft(aNumbers, dRotations) {
   let output = [...aNumbers];
 
   for (let i = 0; i < dRotations; i++) {

src/hackerrank/interview_preparation_kit/arrays/ctci_array_left_rotation.test.js

@@ -1,20 +1,42 @@
 import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../../logger.js';
 
-import arrayLeftRotation from './ctci_array_left_rotation.js';
+import { rotLeft, rotLeftOne } from './ctci_array_left_rotation.js';
 
-import ROT_LEFT_TEST_CASES from './ctci_array_left_rotation.testcases.json';
+const ROT_LEFT_ONE_TEST_CASES = [
+  { numbers: [1, 2, 3, 4, 5], expected: [2, 3, 4, 5, 1] },
+  { numbers: [2, 3, 4, 5, 1], expected: [3, 4, 5, 1, 2] },
+  { numbers: [3, 4, 5, 1, 2], expected: [4, 5, 1, 2, 3] },
+  { numbers: [4, 5, 1, 2, 3], expected: [5, 1, 2, 3, 4] },
+  { numbers: [5, 1, 2, 3, 4], expected: [1, 2, 3, 4, 5] }
+];
+
+const ROT_LEFT_TEST_CASES = [
+  { numbers: [1, 2, 3, 4, 5], d_rotations: 4, expected: [5, 1, 2, 3, 4] }
+];
 
 describe('ctci_array_left_rotation', () => {
+  it('rotLeftOne Test Cases', () => {
+    expect.assertions(5);
+
+    ROT_LEFT_ONE_TEST_CASES.forEach((value) => {
+      const answer = rotLeftOne(value.numbers);
+
+      console.debug(`rotLeftOne(${value.numbers}) solution found: ${answer}`);
+
+      expect(answer).toStrictEqual(value.expected);
+    });
+  });
+
   it('rotLeft Test cases', () => {
-    expect.assertions(8);
+    expect.assertions(1);
 
-    ROT_LEFT_TEST_CASES.forEach((test) => {
-      const answer = arrayLeftRotation.rotLeft(test.input, test.d_rotations);
+    ROT_LEFT_TEST_CASES.forEach((value) => {
+      const answer = rotLeft(value.numbers, value.d_rotations);
 
-      console.debug(`rotLeft(${test.numbers}) solution found: ${answer}`);
+      console.debug(`rotLeft(${value.numbers}) solution found: ${answer}`);
 
-      expect(answer).toStrictEqual(test.expected);
+      expect(answer).toStrictEqual(value.expected);
     });
   });
 });

src/hackerrank/interview_preparation_kit/arrays/ctci_array_left_rotation.testcases.json

@@ -2,7 +2,7 @@
  * @link Problem definition [[docs/hackerrank/interview_preparation_kit/arrays/minimum_swaps_2.md]]
  */
 
-function minimumSwaps(arr) {
+export function minimumSwaps(arr) {
   const indexedGroup = arr.map((x) => x - 1);
   let swaps = 0;
   let index = 0;

src/hackerrank/interview_preparation_kit/arrays/minimum_swaps_2.js

@@ -1,16 +1,20 @@
 import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../../logger.js';
 
-import ms2 from './minimum_swaps_2.js';
+import { minimumSwaps } from './minimum_swaps_2.js';
 
-import TEST_CASES from './minimum_swaps_2.testcases.json';
+const TEST_CASES = [
+  { title: 'Sample input 0', input: [4, 3, 1, 2], expected: 3 },
+  { title: 'Sample input 1', input: [2, 3, 4, 1, 5], expected: 3 },
+  { title: 'Sample input 2', input: [1, 3, 5, 2, 4, 6, 7], expected: 3 }
+];
 
 describe('minimum swaps 2', () => {
   it('minimumSwaps', () => {
     expect.assertions(3);
 
     TEST_CASES.forEach((test) => {
-      const answer = ms2.minimumSwaps(test.input);
+      const answer = minimumSwaps(test.input);
 
       console.debug(`minimumSwaps(${test.input}) solution found: ${answer}`);
 

src/hackerrank/interview_preparation_kit/arrays/minimum_swaps_2.test.js

@@ -3,7 +3,32 @@ import { logger as console } from '../../../logger.js';
 
 import { countTriplets } from './count_triplets_1_bruteforce.js';
 
-import SMALL_TEST_CASES from './count_triplets_1.small.testcases.json';
+const SMALL_TEST_CASES = [
+  {
+    title: 'Sample Test Case 0',
+    input: [1, 2, 2, 4],
+    r: 2,
+    expected: 2
+  },
+  {
+    title: 'Sample Test Case 1',
+    input: [1, 3, 9, 9, 27, 81],
+    r: 3,
+    expected: 6
+  },
+  {
+    title: 'Sample Test Case 1 (unsorted)',
+    input: [9, 3, 1, 81, 9, 27],
+    r: 3,
+    expected: 1
+  },
+  {
+    title: 'Sample Test Case 12',
+    input: [1, 5, 5, 25, 125],
+    r: 5,
+    expected: 4
+  }
+];
 
 describe('count_triplets_1', () => {
   it('countTriplets test cases', () => {

src/hackerrank/interview_preparation_kit/arrays/minimum_swaps_2.testcases.json

@@ -1,16 +1,29 @@
 import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../../logger.js';
 
-import CountTriplets from './count_triplets_1_optmized.js';
-import SMALL_TEST_CASES from './count_triplets_1.small.testcases.json';
-import BIG_TEST_CASES from './count_triplets_1.big.testcases.json';
+import { countTriplets } from './count_triplets_1_optmized.js';
+import SMALL_TEST_CASES from './count_triplets_1_testcases.json';
+
+const BIG_TEST_CASES = [
+  {
+    title: 'Sample Test Case 2',
+    input: [
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
+    ],
+    r: 1,
+    expected: 161700
+  }
+];
 
 describe('count_triplets_1 (optimized)', () => {
   it('countTriplets small test cases', () => {
     expect.assertions(4);
 
     SMALL_TEST_CASES.forEach((test) => {
-      const answer = CountTriplets.countTriplets(test.input, test.r);
+      const answer = countTriplets(test.input, test.r);
 
       console.debug(
         `countTriplets(${test.input}, ${test.r}) solution found: ${answer}`
@@ -24,7 +37,7 @@ describe('count_triplets_1 (optimized)', () => {
     expect.assertions(1);
 
     BIG_TEST_CASES.forEach((test) => {
-      const answer = CountTriplets.countTriplets(test.input, test.r);
+      const answer = countTriplets(test.input, test.r);
 
       console.debug(
         `countTriplets(${test.input}, ${test.r}) solution found: ${answer}`

src/hackerrank/interview_preparation_kit/dictionaries_and_hashmaps/count_triplets_1.big.testcases.json

@@ -3,7 +3,7 @@
  * @see Solution Notes: [[docs/hackerrank/interview_preparation_kit/dictionaries_and_hashmaps/count_triplets_1-solution-notes.md]]
  */
 
-function countTriplets(arr, ratio) {
+export function countTriplets(arr, ratio) {
   let triplets = 0;
 
   const aCounter = arr.reduce((accumulator, entry) => {