encode-and-decode solution

Author: dylan-jung

encode-and-decode-strings/dylan-jung.cpp

@@ -0,0 +1,25 @@
+class Codec {
+    public:
+        string encode(vector<string>& strs) {
+            string result;
+            for (const string& s : strs) {
+                result += to_string(s.size()) + "#" + s;
+            }
+            return result;
+        }
+
+        vector<string> decode(string s) {
+            vector<string> result;
+            int i = 0;
+            while (i < s.size()) {
+                int j = i;
+                while (s[j] != '#') j++;
+                int length = stoi(s.substr(i, j - i));
+                string cur = s.substr(j + 1, length);
+                result.push_back(cur);
+                i = j + 1 + length;
+            }
+            return result;
+        }
+    };
+