LeetCode刷题:7.Reverse Integer 7. Reverse IntegerGiven a 32-bit signed integer, reverse digits of an integer.Example 1: Input: 123 Output: 321 Exampl 2019-02-27 LeetCode 数学
LeetCode刷题:961.N-Repeated Element in Size 2N Array 961. N-Repeated Element in Size 2N ArrayIn a array A of size 2N, there are N+1 unique elements, and exactly one of these 2019-02-24 LeetCode 哈希表
LeetCode刷题:944.Delete Columns to Make Sorted 944. Delete Columns to Make SortedWe are given an array A of N lowercase letter strings, all of the same length.Now, we 2019-02-24 LeetCode 贪心算法
LeetCode刷题:942.DI String Match 942. DI String MatchGiven a string S that only contains “I” (increase) or “D” (decrease), let N = S.length.Return any pe 2019-02-24 LeetCode 数学
LeetCode刷题:929.Unique Email Addresses 929. Unique Email AddressesEvery email consists of a local name and a domain name, separated by the @ sign.For example, 2019-02-24 LeetCode 字符串
LeetCode刷题:922.Sort Array By Parity II 922. Sort Array By Parity IIGiven an array A of non-negative integers, half of the integers in A are odd, and half of th 2019-02-24 LeetCode 数组 排序
LeetCode刷题:905.Sort Array By Parity 905. Sort Array By ParityGiven an array A of non-negative integers, return an array consisting of all the even elements 2019-02-24 LeetCode 数组
LeetCode刷题:867.Transpose Matrix 867. Transpose MatrixGiven a matrix A, return the transpose of A.The transpose of a matrix is the matrix flipped over it 2019-02-24 LeetCode 数组
LeetCode刷题:852.Peak Index in a Mountain Array 852. Peak Index in a Mountain ArrayLet’s call an array A a mountain if the following properties hold: A.length >= 3 2019-02-24 LeetCode 二分查找