#include "include/TreeNode.h"

int max(const int a, const int b)
{
    return a > b ? a : b;
}

int maxDepth(struct TreeNode *root)
{
    if (!root)
        return 0;

    return max(maxDepth(root->left), maxDepth(root->right)) + 1;
}

int main()
{
    return 0;
}