add 374 ts solution

JeremyXXXuuu · JeremyXXXuuu · commit e37d19acfaa8 · 2023-02-07T12:29:33.000+01:00
diff --git a/Problems/11-Guess-Number-Higher-or-Lower/374.ts b/Problems/11-Guess-Number-Higher-or-Lower/374.ts
@@ -0,0 +1,21 @@
+/** 
+ * Forward declaration of guess API.
+ * @param {number} num   your guess
+ * @return 	     -1 if num is higher than the picked number
+ *			      1 if num is lower than the picked number
+ *               otherwise return 0
+ * var guess = function(num) {}
+ */
+
+
+function guessNumber(n: number): number {
+    let right = n + 1;
+    let left = 0;
+    while (left < right) {
+        let mid = Math.floor((left + right) / 2);
+        if (guess(mid) === 0) return mid;
+        else if (guess(mid) === -1) right = mid;
+        else if (guess(mid) === 1) left = mid + 1;
+    }
+
+};
