5주차 문제풀이

Author: leehyeyun

encode-and-decode-strings/leehyeyun.js

@@ -0,0 +1,51 @@
+var encode = function (strs) {
+    // strs: string[]
+    // return: string
+    // write your code here
+
+    let encode_result = "";
+
+    for (const encode_strs of strs)
+    {
+        const encode_strs_length = encode_strs.length;
+
+        if(encode_result != undefined)
+        {
+            encode_result = encode_result + encode_strs_length + "|" + encode_strs; 
+        }
+          
+    }
+
+    return encode_result;
+};
+
+var decode = function (str) {
+    // str: string
+    // return: string[]
+    // write your code here
+
+    let results = [];
+
+    while (str.length > 0) {
+        let i = 0;
+        while (str[i] >= '0' && str[i] <= '9') {
+            i++;
+        }
+
+        let decode_str_length = str.substring(0, i);
+        let len = parseInt(decode_str_length, 10);
+
+        let newStr = str.substring(i + 1);
+        let result = newStr.substr(0,decode_str_length)
+
+        str = newStr.substring(len);
+        
+        results.push(result);
+    } 
+
+    return results;
+};
+
+console.log(decode(encode(["lint","code","love","you"])));
+console.log(decode(encode(["we","say",":","yes"])));
+