[REFACTOR] [Hacker Rank] Interview Preparation Kit: Greedy Algorithms: Luck Balance.

* TEST data moved to JSON.
* Adjusted the interface to match what hackerrank expects.

Author: sir-gon

src/hackerrank/interview_preparation_kit/greedy_algorithms/luck-balance.js

@@ -39,7 +39,7 @@ class Contest {
   }
 }
 
-export function luckBalance(k, contests) {
+function luckBalance(k, contests) {
   let importantContests = [];
   const nonimportantContests = [];
 

src/hackerrank/interview_preparation_kit/greedy_algorithms/luck-balance.test.js

@@ -1,57 +1,16 @@
 import { describe, expect, it } from '@jest/globals';
 import { logger as console } from '../../../logger.js';
 
-import { luckBalance } from './luck-balance.js';
+import luckBalance from './luck-balance.js';
 
-const TEST_CASES = [
-  {
-    'title': 'Sample Test case 0',
-    'k': 3,
-    'contests': [
-      [5, 1],
-      [2, 1],
-      [1, 1],
-      [8, 1],
-      [10, 0],
-      [5, 0]
-    ],
-    'expected': 29
-  },
-  {
-    'title': 'Sample Test case 1',
-    'k': 5,
-    'contests': [
-      [13, 1],
-      [10, 1],
-      [9, 1],
-      [8, 1],
-      [13, 1],
-      [12, 1],
-      [18, 1],
-      [13, 1]
-    ],
-    'expected': 42
-  },
-  {
-    'title': 'Sample Test case 1',
-    'k': 2,
-    'contests': [
-      [5, 1],
-      [4, 0],
-      [6, 1],
-      [2, 1],
-      [8, 0]
-    ],
-    'expected': 21
-  }
-];
+import TEST_CASES from './luck-balance.testcases.json';
 
 describe('luck-balance', () => {
   it('luckBalance test cases', () => {
     expect.assertions(3);
 
     TEST_CASES.forEach((test) => {
-      const answer = luckBalance(test.k, test.contests);
+      const answer = luckBalance.luckBalance(test.k, test.contests);
 
       console.debug(
         `luckBalance(${test.k}, ${test.contests}) solution found: ${answer}`

src/hackerrank/interview_preparation_kit/greedy_algorithms/luck-balance.testcases.json

@@ -0,0 +1,42 @@
+[
+  {
+    "title": "Sample Test case 0",
+    "k": 3,
+    "contests": [
+      [5, 1],
+      [2, 1],
+      [1, 1],
+      [8, 1],
+      [10, 0],
+      [5, 0]
+    ],
+    "expected": 29
+  },
+  {
+    "title": "Sample Test case 1",
+    "k": 5,
+    "contests": [
+      [13, 1],
+      [10, 1],
+      [9, 1],
+      [8, 1],
+      [13, 1],
+      [12, 1],
+      [18, 1],
+      [13, 1]
+    ],
+    "expected": 42
+  },
+  {
+    "title": "Sample Test case 1",
+    "k": 2,
+    "contests": [
+      [5, 1],
+      [4, 0],
+      [6, 1],
+      [2, 1],
+      [8, 0]
+    ],
+    "expected": 21
+  }
+]