acwing::acwing3766 命名空间参考

函数
int	pathSum (TreeNode *root)
int	pathSum (TreeNode *root, int level)

函数说明

pathSum() [1/2]

int acwing::acwing3766::pathSum

(

TreeNode *

root

)

在文件 acwing408.cpp 第 307 行定义.

                                    {
            return pathSum(root, 0);
        }

引用了 pathSum() , 以及 acwing::acwing3786::root.

pathSum() [2/2]

int acwing::acwing3766::pathSum	(	TreeNode *	root,
		int	level
	)

在文件 acwing408.cpp 第 311 行定义.

                                               {
            if(root == nullptr) {
                return 0;
            }
            if(root->left == nullptr && root->right == nullptr) {
                return level * root->val;
            }
            int leftVal  = pathSum(root->left, level + 1);
            int rightVal = pathSum(root->right, level + 1);
            return leftVal + rightVal;
        }

引用了 acwing::TreeNode::left, pathSum(), acwing::TreeNode::right, acwing::acwing3786::root , 以及 acwing::TreeNode::val.

被这些函数引用 pathSum().