Merge branch 'IbuAR-271' into main

jawwad · Jun 26, 2022 · 6c9a71d · 6c9a71d
2 parents 96ae455 + 3e32ae9
commit 6c9a71d
Showing 1 changed file with 30 additions and 0 deletions.
diff --git a/javascript/271-Encode-and-Decode-Strings.js b/javascript/271-Encode-and-Decode-Strings.js
@@ -0,0 +1,30 @@
+/**
+ * @param {string[]} strs
+ * @return {string}
+ */
+function encode(strs) {
+ return strs.map(str => `${str.length}#${str}`).join('');
+}
+
+/**
+ * @param {string} str
+ * @return {string[]}
+ */
+function decode(str) {
+ const res = [];
+ let i = 0;
+
+ while (i < str.length) {
+ let j = i;
+ while (str[j] !== "#") {
+ ++j;
+ }
+
+ const len = Number(str.slice(i, j));
+ res.push(str.slice(++j, j + len));
+ i = j + len;
+ }
+
+ return res;
+}
+