From b5a5340d1a964254325dc4ed64507c3460a9d3b9 Mon Sep 17 00:00:00 2001
From: mengyi <yiii9292@gmail.com>
Date: Wed, 5 Jun 2024 19:08:31 -0400
Subject: [PATCH] add curly braces and comments to advoid confusion

---
 problems/0704.二分查找.md | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/problems/0704.二分查找.md b/problems/0704.二分查找.md
index 5604cd56..d86146d6 100644
--- a/problems/0704.二分查找.md
+++ b/problems/0704.二分查找.md
@@ -174,13 +174,17 @@ class Solution {
         int left = 0, right = nums.length - 1;
         while (left <= right) {
             int mid = left + ((right - left) >> 1);
-            if (nums[mid] == target)
+            if (nums[mid] == target) {
                 return mid;
-            else if (nums[mid] < target)
+            }
+            else if (nums[mid] < target) {
                 left = mid + 1;
-            else if (nums[mid] > target)
+            }
+            else { // nums[mid] > target
                 right = mid - 1;
+            }
         }
+        // 未找到目标值
         return -1;
     }
 }
@@ -194,13 +198,17 @@ class Solution {
         int left = 0, right = nums.length;
         while (left < right) {
             int mid = left + ((right - left) >> 1);
-            if (nums[mid] == target)
+            if (nums[mid] == target) {
                 return mid;
-            else if (nums[mid] < target)
+            }
+            else if (nums[mid] < target) {
                 left = mid + 1;
-            else if (nums[mid] > target)
+            }
+            else { // nums[mid] > target
                 right = mid;
+            }
         }
+        // 未找到目标值
         return -1;
     }
 }