artisans的专栏

【代码】vscode 配置setting json。

struct Node{ Node(int v) : val(v) { } Node* l = nullptr; Node* r = nullptr; int val;};void bfs(Node* n){ queue<Node*> que; que.push(n); while (que.size()) { n = que.front(); ...

int partition(vector<int>& vec, int lo, int hi){ int pivot = vec[lo]; int i = lo, j = lo; while (i <= hi) { if (vec[i] < pivot) { j++; std::swap(vec[i], vec[j]); ...

class Solution{ public: bool isSymmetric(TreeNode* root) { if (!root) return true; vector<TreeNode*> vec; vec.push_back(root); int cur = 0; while (cur < vec.size()) { int ...

全排列def dfs(nums, d): if d == len(nums): print(nums) for i in range(d, len(nums)): nums[d], nums[i] = nums[i], nums[d] dfs(nums, d+1) nums[d], nums[i] = n...