rightSideView.txt added

Author: kokodeshinu

LeetCode Solutions/rightSideView.txt

@@ -0,0 +1,36 @@
+Problem Link - https://leetcode.com/problems/binary-tree-right-side-view/
+/**
+ * Definition for a binary tree node.
+ * struct TreeNode {
+ *     int val;
+ *     TreeNode *left;
+ *     TreeNode *right;
+ *     TreeNode() : val(0), left(nullptr), right(nullptr) {}
+ *     TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
+ *     TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}
+ * };
+ */
+class Solution {
+public:
+    vector<int>v;
+    int rightView(TreeNode *root,int level,int &maxLevel){
+        if (root == NULL)
+        {
+        return 0;
+        }
+        if (level > maxLevel)
+        {
+        v.push_back(root->val);
+        maxLevel = level;
+        }
+        rightView(root->right, level + 1, maxLevel);
+        rightView(root->left, level + 1, maxLevel);
+        return 0;
+     }
+    vector<int> rightSideView(TreeNode* root) {
+        int level=0;
+        int maxLevel=-1;
+       rightView(root,level,maxLevel);
+       return v;
+    }
+};