摘要:
1 class Solution { 2 public int combinationSum4(int[] nums, int target) { 3 int[] res = new int[target + 1]; 4 res[0] = 1; 5 for(int i = 1; i 0) { 8 ... 阅读全文
摘要:
打印字符串的一个字符用str.charAt()substring用str.subString() 要用这个字母之前几个能否组成word这样来考虑 https://leetcode.com/problems/word-break/discuss/43790/Java-implementation-us 阅读全文