feat: add solutions to lc problem: No.0500 (#930)

Author: thinkasany

solution/0500-0599/0500.Keyboard Row/README.md

@@ -194,6 +194,30 @@ public class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function findWords(words: string[]): string[] {
+    const s = '12210111011122000010020202';
+    const ans: string[] = [];
+    for (const w of words) {
+        const t = w.toLowerCase();
+        const x = s[t.charCodeAt(0) - 'a'.charCodeAt(0)];
+        let ok = true;
+        for (const c of t) {
+            if (s[c.charCodeAt(0) - 'a'.charCodeAt(0)] !== x) {
+                ok = false;
+                break;
+            }
+        }
+        if (ok) {
+            ans.push(w);
+        }
+    }
+    return ans;
+}
+```
+
 ### **...**
 
 ```

solution/0500-0599/0500.Keyboard Row/README_EN.md

@@ -176,6 +176,30 @@ public class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function findWords(words: string[]): string[] {
+    const s = '12210111011122000010020202';
+    const ans: string[] = [];
+    for (const w of words) {
+        const t = w.toLowerCase();
+        const x = s[t.charCodeAt(0) - 'a'.charCodeAt(0)];
+        let ok = true;
+        for (const c of t) {
+            if (s[c.charCodeAt(0) - 'a'.charCodeAt(0)] !== x) {
+                ok = false;
+                break;
+            }
+        }
+        if (ok) {
+            ans.push(w);
+        }
+    }
+    return ans;
+}
+```
+
 ### **...**
 
 ```

solution/0500-0599/0500.Keyboard Row/Solution.ts

@@ -0,0 +1,19 @@
+function findWords(words: string[]): string[] {
+    const s = '12210111011122000010020202';
+    const ans: string[] = [];
+    for (const w of words) {
+        const t = w.toLowerCase();
+        const x = s[t.charCodeAt(0) - 'a'.charCodeAt(0)];
+        let ok = true;
+        for (const c of t) {
+            if (s[c.charCodeAt(0) - 'a'.charCodeAt(0)] !== x) {
+                ok = false;
+                break;
+            }
+        }
+        if (ok) {
+            ans.push(w);
+        }
+    }
+    return ans;
+}