一.解法 https://leetcode-cn.com/problems/bulls-and-cows/ 要點:hashmapP...
一.解法 https://leetcode-cn.com/problems/nim-game/ 要點:數(shù)學,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:hashmapPytho...
一.解法 https://leetcode-cn.com/problems/move-zeroes/ 要點: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:二分法Python...
一.解法 https://leetcode-cn.com/problems/missing-number/要點:數(shù)學,hashmap,排序C++...
一.解法 https://leetcode-cn.com/problems/ugly-number/要點:數(shù)學丑數(shù)除去所有的2,所有的3,所有的...
一.解法 https://leetcode-cn.com/problems/add-digits/要點:數(shù)學這道題可以用循環(huán)方法解決,將給定的數(shù)...
一.解法 https://leetcode-cn.com/problems/binary-tree-paths/要點:遞歸,DFSPython,...