diff --git a/problem1.java b/problem1.java
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+++ b/problem1.java
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+// Time Complexity : O(n)
+// Space Complexity :O(n)
+// Did this code successfully run on Leetcode : yes
+// Any problem you faced while coding this : no
+
+/*
+Approach
+we are using topological sort here , using array's index to represent people, if someone trusts a people we increase their count and decrease
+the people who is trusting
+in the next loop we check if someone has value equal to n-1 (n-1 mean part to the person it self everyone trusts him, and he does does not trust anyone or else n-1 is no possible)
+we return that person
+if that is not found that mean we don't have a judge 
+*/
+
+class Solution {
+    public int findJudge(int n, int[][] trust) {
+        int[] indgrees = new int[n + 1]; // 0
+        for (int[] tr : trust) {
+            indgrees[tr[0]]--;
+            indgrees[tr[1]]++;
+        }
+        for (int i = 1; i < indgrees.length; i++) {
+            if (indgrees[i] == n - 1) {
+                return i;
+            }
+        }
+        return -1;
+    }
+}
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diff --git a/problem2.java b/problem2.java
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+// Time Complexity : O(nm)
+// Space Complexity :O(nm)
+// Did this code successfully run on Leetcode : yes
+// Any problem you faced while coding this : no
+
+/*
+Approach
+we are suing dfs to find the destination, 
+add the start index to queue and make it a visted 
+then start the loop on queue until empty
+in the loop we take one ele out from queue
+and check in all dir until a hurdle is found or
+when we take a set back check if its the desstination or not if yes return true
+else if its not marked visited add it to queue, if queue is empty and destination not found return false
+*/
+class Solution {
+    public boolean hasPath(int[][] maze, int[] start, int[] destination) {
+        if (maze == null || maze.length == 0)
+            return false;
+        if (start[0] == destination[0] && start[1] == destination[1])
+            return true;
+        int m = maze.length;
+        int n = maze[0].length;
+        int[][] dirs = { { 0, 1 }, { 1, 0 }, { -1, 0 }, { 0, -1 } };
+        Queue<int[]> q = new LinkedList<>();
+        q.add(start);
+        maze[start[0]][start[1]] = 2;
+        while (!q.isEmpty()) {
+            int[] cur = q.poll();
+            for (int[] dir : dirs) {
+                int r = cur[0];
+                int c = cur[1];
+                while (r >= 0 && c >= 0 && r < m && c < n && maze[r][c] != 1) {
+                    r += dir[0];
+                    c += dir[1];
+                }
+                r -= dir[0];
+                c -= dir[1];
+                if (r == destination[0] && c == destination[1])
+                    return true;
+                if (maze[r][c] != 2) {
+                    q.add(new int[] { r, c });
+                    maze[r][c] = 2;
+                }
+            }
+        }
+        return false;
+    }
+}
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