feat: 2025-10-28打卡

2025-10-28 15:52:13 +08:00
parent fc82d7eb10
commit 2fa03ec244
13 changed files with 486 additions and 6 deletions
--- a/69.sqrt-x.java
+++ b/69.sqrt-x.java
@@ -7,13 +7,13 @@
 // @lc code=start
 class Solution {
    public int mySqrt(int x) {
-        long l = 0, r = Integer.MAX_VALUE;
-        while(r-l > 1) {
-            long mid = l + (r-l)/2;
-            if(mid * mid <= (long)x) {
-                l = mid;
+        long l = 0, r = x+(long)1, m;
+        while(r - l > 1) {
+            m = l + (r-l)/2;
+            if(m*m <= x) {
+                l = m;
            } else {
-                r = mid;
+                r = m;
            }
        }
        return (int)l;