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class Solution { public: vector> findLadders(string beginWord, string endWord, vector& wordList) { unordered_set s(wordList.begin(), wordList.end()); vector> res; if (s.fi... 阅读全文
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class Solution { public: int ladderLength(string beginWord, string endWord, vector& wordList) { unordered_set s(wordList.begin(), wordList.end()); if (s.find(endWord) == s.end() |... 阅读全文
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class Solution { public: int rob(vector& nums) { if (nums.size() == 0) return 0; if (nums.size() == 1) return nums[0]; return max(helper(nums, 0, nums.size()-2), helpe... 阅读全文
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class Solution { public: int largestRectangleArea(vector& h) { stack s; int res = 0; h.push_back(0); for (int i = 0; i < h.size(); i++) { while (!s.emp... 阅读全文
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class Solution { public: int numRescueBoats(vector& people, int limit) { sort(people.begin(), people.end()); int res = 0; for (int i = 0, j = people.size()-1; i <= j; ) { ... 阅读全文
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/** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: ListNode* s... 阅读全文
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class Solution { public: vector> largeGroupPositions(string s) { vector> res; int start = 0, end = 0; for (int i = 1; i = 3) { vector t; ... 阅读全文
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class Solution { public: int numSquares(int n) { vector c; for (int i = 1; i*i q; q.push(0); int lv = 0; while (!q.empty()) { int qs = q.size(... 阅读全文
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class Solution { public: vector> threeSum(vector& nums) { sort(nums.begin(), nums.end()); vector> res; if (nums.size() 0 && nums[i] == nums[i-1]) continue; i... 阅读全文
摘要：
/* // Definition for a Node. class Node { public: int val = NULL; Node* prev = NULL; Node* next = NULL; Node* child = NULL; Node() {} Node(int _val, Node* _prev, Node* _next... 阅读全文