diff --git a/5.leetcode/src/com/fanxb/common/Q149.java b/5.leetcode/src/com/fanxb/common/Q149.java
new file mode 100644
index 0000000..9069daa
--- /dev/null
+++ b/5.leetcode/src/com/fanxb/common/Q149.java
@@ -0,0 +1,37 @@
+package com.fanxb.common;
+
+/**
+ * Created with IntelliJ IDEA
+ * 寻找旋转排序数组中的最小值
+ * 地址： https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array/
+ * 思路： 需要找到分界点
+ *
+ * @author fanxb
+ * Date: 2020/6/11 9:56
+ */
+public class Q149 {
+    public int maxPoints(int[][] points) {
+        int max = 1;
+        for (int i = 0; i < points.length; i++) {
+            int[] a1 = points[i];
+            for (int j = i + 1; j < points.length; j++) {
+                int[] a2 = points[j];
+                int n = 2;
+                for (int k = j + 1; k < points.length; k++) {
+                    int[] a3 = points[k];
+                    if ((a2[1] - a1[1]) * (a3[0] - a1[0]) == (a3[1] - a1[1]) * (a2[0] - a1[0])) {
+                        n++;
+                    }
+                }
+                if (n > max) {
+                    max = n;
+                }
+            }
+        }
+        return max;
+    }
+
+    public static void main(String[] args) {
+        System.out.println(new Q149().maxPoints(new int[][]{{1, 1}, {3, 2}, {5, 3}, {4, 1}, {2, 3}, {1, 4}}));
+    }
+}
diff --git a/5.leetcode/src/com/fanxb/common/Q1833.java b/5.leetcode/src/com/fanxb/common/Q1833.java
new file mode 100644
index 0000000..8991c6a
--- /dev/null
+++ b/5.leetcode/src/com/fanxb/common/Q1833.java
@@ -0,0 +1,29 @@
+package com.fanxb.common;
+
+import java.util.*;
+
+/**
+ * 两数相加
+ *
+ * @author fanxb
+ * @date 2021/6/1
+ **/
+public class Q1833 {
+    public int maxIceCream(int[] costs, int coins) {
+        Arrays.sort(costs);
+        int count = 0;
+        for (int i = 0; i < costs.length; i++) {
+            coins -= costs[i];
+            if (coins >= 0) {
+                count++;
+            } else {
+                break;
+            }
+        }
+        return count;
+    }
+
+    public static void main(String[] args) {
+        System.out.println(new Q1833().maxIceCream(new int[]{1, 3, 2, 4, 1}, 7));
+    }
+}
diff --git a/5.leetcode/src/com/fanxb/common/Q401.java b/5.leetcode/src/com/fanxb/common/Q401.java
index b2a2173..5b78a0b 100644
--- a/5.leetcode/src/com/fanxb/common/Q401.java
+++ b/5.leetcode/src/com/fanxb/common/Q401.java
@@ -11,26 +11,28 @@ import java.util.*;
  * @date 2021/6/1
  **/
 public class Q401 {
-    private static Map<Integer, LinkedList<String>> map=new HashMap<>(10);
+    private static Map<Integer, LinkedList<String>> map = new HashMap<>(10);
+
     static {
-        for(int i=0;i<=11;i++){
-            for(int j=0;j<=59;j++){
-                LinkedList<String> linkedList = map.computeIfAbsent(count(i)+count(j),k->new LinkedList<>());
-                linkedList.add(i+":"+(j<10?"0"+j:j));
+        for (int i = 0; i <= 11; i++) {
+            for (int j = 0; j <= 59; j++) {
+                LinkedList<String> linkedList = map.computeIfAbsent(count(i) + count(j), k -> new LinkedList<>());
+                linkedList.add(i + ":" + (j < 10 ? "0" + j : j));
             }
         }
     }
-    private static int count(int x){
-        int count=0;
-        while (x>0){
-           x-=x&(-x);
-           count++;
+
+    private static int count(int x) {
+        int count = 0;
+        while (x > 0) {
+            x -= x & (-x);
+            count++;
         }
         return count;
     }
 
     public List<String> readBinaryWatch(int turnedOn) {
-        return map.getOrDefault(turnedOn,new LinkedList<String>());
+        return map.getOrDefault(turnedOn, new LinkedList<String>());
     }
 
     public static void main(String[] args) {