feat: 2025-10-23打卡

58.length-of-last-word.java

@@ -0,0 +1,30 @@
+/*
+ * @lc app=leetcode id=58 lang=java
+ *
+ * [58] Length of Last Word
+ */
+
+// @lc code=start
+class Solution {
+    public int lengthOfLastWord(String s) {
+        if(s == null || s.isBlank()) {
+            return 0;
+        }
+        int i = s.length() - 1;
+        while(i >= 0 && s.charAt(i) == ' ') {
+            i--;
+        }
+        int r = 0;
+        while(i >= 0) {
+            if(s.charAt(i) != ' ') {
+                r++;
+                i--;
+            } else {
+                break;
+            }
+        }
+        return r;
+    }
+}
+// @lc code=end
+