adding solutions for 15-day

solutions/029.md

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+### Typescript
+2114. Maximum Number of Words Found in Sentences
+```typescript
+function mostWordsFound(sentences: string[]): number {
+    let maxNumber=0
+    for(let item of sentences){
+        const lenghtofItem=item.split(" ").length
+        maxNumber=lenghtofItem>maxNumber?lenghtofItem:maxNumber
+    }
+    return maxNumber
+};
+```

solutions/030.md

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+### Typescript
+2433. Find The Original Array of Prefix Xor
+```typescript
+function findArray(pref: number[]): number[] {
+    return pref.map((item,index)=>item^pref[index-1])
+};
+```