Update Bitwise AND of Numbers Range

AAAA-source · web-flow · commit c3e3ea5adf3b · 2025-02-24T01:26:59.000+08:00
diff --git a/Top Interview 150/Bitwise AND of Numbers Range b/Top Interview 150/Bitwise AND of Numbers Range
@@ -32,7 +32,7 @@ class Solution {
 public:
     int rangeBitwiseAnd(int left, int right) {
         int shift = 0 ;
-        while (left < right) {
+        while (left < right) { // also can use right & (right - 1) to discard the rightmost '1' bit
             left >>= 1 ;
             right >>= 1 ;
             shift++ ;
