摘要: 1 class Solution { 2 public: 3 int countSubstrings(string s) { 4 int n = s.size(), sum = 0; 5 for(int i = 0; i < n*2-1; i++) 6 { 7 int l = i / 2, r = 阅读全文
posted @ 2020-08-19 00:43 TTTCoder 阅读(500) 评论(0) 推荐(0) 编辑