[pull] master from TheAlgorithms:master

.github/workflows/UploadCoverageReport.yml

@@ -8,6 +8,9 @@ name: UploadCoverageReport
       - master
   pull_request:
 
+env:
+  REPORT_PATH: "coverage/coverage-final.json"
+
 jobs:
   UploadCoverageReport:
     runs-on: ubuntu-latest
@@ -25,9 +28,18 @@ jobs:
       - name: Generate coverage report
         run: npm test -- --coverage
 
-      - name: Upload coverage to codecov
-        uses: codecov/codecov-action@v3
+      - name: Upload coverage to codecov (tokenless)
+        if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository
+        uses: codecov/codecov-action@v4
+        with:
+          files: "${{ env.REPORT_PATH }}"
+          fail_ci_if_error: true
+
+      - name: Upload coverage to codecov (with token)
+        if: "! github.event.pull_request.head.repo.fork "
+        uses: codecov/codecov-action@v4
         with:
-          files: "coverage/coverage-final.json"
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: "${{ env.REPORT_PATH }}"
           fail_ci_if_error: true
 ...

Compression/RLE.js

@@ -0,0 +1,38 @@
+/*
+ * RLE (Run Length Encoding) is a simple form of data compression.
+ * The basic idea is to represent repeated successive characters as a single count and character.
+ * For example, the string "AAAABBBCCDAA" would be encoded as "4A3B2C1D2A".
+ *
+ * @author - [ddaniel27](https://github.com/ddaniel27)
+ */
+
+function Compress(str) {
+  let compressed = ''
+  let count = 1
+
+  for (let i = 0; i < str.length; i++) {
+    if (str[i] !== str[i + 1]) {
+      compressed += count + str[i]
+      count = 1
+      continue
+    }
+
+    count++
+  }
+
+  return compressed
+}
+
+function Decompress(str) {
+  let decompressed = ''
+  let match = [...str.matchAll(/(\d+)(\D)/g)] // match all groups of digits followed by a non-digit character
+
+  match.forEach((item) => {
+    let [count, char] = [item[1], item[2]]
+    decompressed += char.repeat(count)
+  })
+
+  return decompressed
+}
+
+export { Compress, Decompress }

Compression/test/RLE.test.js

@@ -0,0 +1,13 @@
+import { Compress, Decompress } from '../RLE'
+
+describe('Test RLE Compressor/Decompressor', () => {
+  it('Test - 1, Pass long repetitive strings', () => {
+    expect(Compress('AAAAAAAAAAAAAA')).toBe('14A')
+    expect(Compress('AAABBQQQQQFG')).toBe('3A2B5Q1F1G')
+  })
+
+  it('Test - 2, Pass compressed strings', () => {
+    expect(Decompress('14A')).toBe('AAAAAAAAAAAAAA')
+    expect(Decompress('3A2B5Q1F1G')).toBe('AAABBQQQQQFG')
+  })
+})