一.解法 https://leetcode-cn.com/problems/bulls-and-cows/ 要點(diǎn)：hashmapP...

一.解法 https://leetcode-cn.com/problems/nim-game/ 要點(diǎn)：數(shù)學(xué)翠语，動態(tài)規(guī)劃一開始想到用動...

一.解法 https://leetcode-cn.com/problems/word-pattern/ 要點(diǎn)：hashmapPytho...

一.解法 https://leetcode-cn.com/problems/move-zeroes/ 要點(diǎn)：雙指針C++用了從后往前找0冒...

一.解法 https://leetcode-cn.com/problems/first-bad-version/ 要點(diǎn)：二分法Python...

一.解法 https://leetcode-cn.com/problems/missing-number/要點(diǎn)：數(shù)學(xué)束倍，hashmap握础，排序C++...

一.解法 https://leetcode-cn.com/problems/ugly-number/要點(diǎn)：數(shù)學(xué)丑數(shù)除去所有的2透典，所有的3卓箫，所有的...

一.解法 https://leetcode-cn.com/problems/add-digits/要點(diǎn)：數(shù)學(xué)這道題可以用循環(huán)方法解決泻骤，將給定的數(shù)...

一.解法 https://leetcode-cn.com/problems/binary-tree-paths/要點(diǎn)：遞歸围肥，DFSPython罩扇，...