diff --git a/src/main/java/com/code/leet/week/Solution263.java b/src/main/java/com/code/leet/week/Solution263.java
new file mode 100644
index 0000000..4efef04
--- /dev/null
+++ b/src/main/java/com/code/leet/week/Solution263.java
@@ -0,0 +1,142 @@
+package com.code.leet.week;
+
+import com.code.leet.entiy.TwoArray;
+
+import java.math.BigInteger;
+import java.util.*;
+
+/**
+ * @description:
+ * @author: Administrator
+ * @date: 2021/8/22-10:29
+ */
+public class Solution263 {
+    public static void main(String[] args) {
+        Solution263 solution = new Solution263();
+//        solution.areNumbersAscending("hello world 5 x 5");
+        TwoArray twoArray = new TwoArray("[[1,2],[1,3],[1,4],[3,4],[4,5]]", true);
+        solution.secondMinimum(5, twoArray.getArr(), 3, 5);
+    }
+
+    public boolean areNumbersAscending(String s) {
+        int num = -1;
+        String str = "";
+        for (int i = 0; i < s.length(); i++) {
+            if (Character.isDigit(s.charAt(i))) {
+                str = "" + s.charAt(i);
+                i++;
+                while (i < s.length() && Character.isDigit(s.charAt(i))) {
+                    str += s.charAt(i);
+                    i++;
+                }
+                if (num < Integer.parseInt(str)) {
+                    num = Integer.parseInt(str);
+                } else {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    class Bank {
+        long[] balance;
+
+        public Bank(long[] balance) {
+            this.balance = balance;
+        }
+
+        public boolean transfer(int account1, int account2, long money) {
+            if (account1 - 1 < balance.length && balance[account1 - 1] >= money && account2 - 1 < balance.length) {
+                balance[account1 - 1] -= money;
+                balance[account2 - 1] += money;
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        public boolean deposit(int account, long money) {
+            if (account - 1 < balance.length) {
+                balance[account - 1] += money;
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        public boolean withdraw(int account, long money) {
+            if (account - 1 < balance.length && balance[account - 1] >= money) {
+                balance[account - 1] -= money;
+                return true;
+            } else {
+                return false;
+            }
+        }
+    }
+
+    int max = -1;
+    int count = 1;
+
+    public int countMaxOrSubsets(int[] nums) {
+        dfs(0, nums, 0);
+        return count;
+    }
+
+    private void dfs(int index, int[] nums, int res) {
+        if (index == nums.length) {
+            if (max == -1 || res > max) {
+                max = res;
+                count = 1;
+            } else if (res == max) {
+                count++;
+            }
+            return;
+        }
+        dfs(index + 1, nums, res | nums[index]);
+        dfs(index + 1, nums, res);
+    }
+
+    public int secondMinimum(int n, int[][] edges, int time, int change) {
+        Map<Integer, List<Integer>> map = new HashMap<>();
+        for (int[] edge : edges) {
+            List<Integer> list = map.getOrDefault(edge[0], new ArrayList<>());
+            list.add(edge[1]);
+            map.put(edge[0], list);
+            list = map.getOrDefault(edge[1], new ArrayList<>());
+            list.add(edge[0]);
+            map.put(edge[1], list);
+        }
+        Queue<int[]> queue = new LinkedList<>();
+        queue.add(new int[]{1, 0});
+        int[] counts = new int[n + 1];
+        while (!queue.isEmpty()) {
+            int[] arrs = queue.peek();
+            int free = arrs[1] + time;
+            if ((arrs[1] / change) % 2 == 1) {
+                free += change - arrs[1] % change;
+            }
+            int size = queue.size();
+            boolean bl = true;
+            boolean[] use = new boolean[n + 1];
+            for (int i = 0; i < size; i++) {
+                arrs = queue.poll();
+                List<Integer> list = map.get(arrs[0]);
+                for (int num : list) {
+                    if (!use[num] && counts[num] < 2) {
+                        queue.add(new int[]{num, free});
+                        use[num] = true;
+                        counts[num]++;
+                    }
+                    if (num == n && bl) {
+                        bl = false;
+                        if (counts[num] == 2) {
+                            return free;
+                        }
+                    }
+                }
+            }
+        }
+        return 0;
+    }
+}