杂项--简单

求众数，给定一个大小为 n 的数组，找到其中的众数。众数是指在数组中出现次数大于 ⌊ n/2 ⌋ 的元素。https://leetcode-cn.com/problems/majority-element/

特殊题目： 

SQL  175  176  181 182  183  196  197

BASH   195  192  193

 位运算    <<   左移   扩大两倍

                >>  右移    缩小两倍

来源:https://leetcode-cn.com/problems/di-string-match/submissions/

 

 

 

 

来源:https://leetcode-cn.com/problems/long-pressed-name/

 

 

 

来源:https://leetcode-cn.com/problems/sort-array-by-parity-ii/submissions/

 

 

 

 

来源:https://leetcode-cn.com/problems/middle-of-the-linked-list/solution/lian-biao-de-zhong-jian-jie-dian-by-leetcode/

 

 

 

 

 

 

来源：https://leetcode-cn.com/problems/rectangle-overlap/solution/ju-zhen-zhong-die-by-leetcode/

 

 

 

 

来源：https://leetcode-cn.com/problems/number-of-equivalent-domino-pairs/

来源:

 

 

 

来源:https://leetcode-cn.com/problems/greatest-common-divisor-of-strings/submissions/

 

 

 

 

来源：https://leetcode-cn.com/problems/shortest-distance-to-a-character/

 

 

 

 

来源:https://leetcode-cn.com/problems/letter-case-permutation/

 

 

 

来源:https://leetcode-cn.com/problems/reach-a-number/

 

 

 

来源:https://leetcode-cn.com/problems/flood-fill/

 

 

 

来源:https://leetcode-cn.com/problems/find-pivot-index/

 

 

 

 

来源：https://leetcode-cn.com/problems/count-binary-substrings/

 

 

 

 

来源:https://leetcode-cn.com/problems/can-place-flowers/

 

 

 

来源：https://leetcode-cn.com/problems/island-perimeter/

 

 

来源：https://leetcode-cn.com/problems/repeated-substring-pattern/

 

 

 

 

 

 

来源：https://leetcode-cn.com/problems/find-all-numbers-disappeared-in-an-array/submissions/

 

 

 

 

来源：https://leetcode-cn.com/problems/power-of-two/

来源： https://leetcode-cn.com/problems/intersection-of-two-linked-lists/

题目：相交链表

 

 

 

LeetCode      167 

 

 来源：https://leetcode-cn.com/problems/factorial-trailing-zeroes/submissions/

 190

 

 

 198

 

 

 将前k项合并成一项，那么k+2项的值由前k+1合并值与前k项合并值+第k+2项的值决定

 位运算：https://www.cnblogs.com/Zhouzg-2018/p/9821042.html