374.Guess Number Higher or Lower

374.Guess Number Higher or Lower

Author: SteffiKeranJ

guessNumber.cpp

@@ -0,0 +1,20 @@
+public:
+    int guessNumber(int n) {
+        int l =1;
+        int r = n;
+        while (l <=r){
+            
+            int mid = l+(r-l)/2;
+            int res = guess(mid);
+            
+            if (res==0) return mid;
+            else if (res == -1) {
+                r = mid - 1;    
+            }
+            else {
+                l = mid + 1;
+            }
+        }
+        return -1;
+    }
+};