C++ (Cpp) sumOfLeftLeavesHelper Examples

Example #1

File: LC_00404_SumOfLeftLeaves.cpp Project: jordandong/myleetcodes

 int sumOfLeftLeavesHelper(TreeNode* root, bool is_left) {
     if (!root)
         return 0;
     if (!root->left && !root->right && is_left)
         return root->val;
     return sumOfLeftLeavesHelper(root->left, true) + sumOfLeftLeavesHelper(root->right, false);
 }

Example #2

File: sum-of-left-leaves.cpp Project: BriteSun/LeetCode-1

 int sumOfLeftLeavesHelper(TreeNode* root, bool is_left) {
     if (!root) {
         return 0;
     }
     if (!root->left && !root->right) {
         return is_left ? root->val : 0;
     }
     return sumOfLeftLeavesHelper(root->left, true) +
            sumOfLeftLeavesHelper(root->right, false);
 }

Example #3

File: sum-of-left-leaves.cpp Project: BriteSun/LeetCode-1

 int sumOfLeftLeaves(TreeNode* root) {
     return sumOfLeftLeavesHelper(root, false);
 }