It should be running in O(m) times. It should also state, for each position i, the length of the longest substring in T starting at i that can be formed from S. I was not sure of two pointer(not exactly) solution correctness. If possible can someone know any question similar to thi...
String Solution 2 A CodeForces 1187B 题意: 商家给出字符串\(S\),对于每个名字\(t_i\),需要回答至少需要从前往后多少个连续字符才能写出名字\(t_i\)。 Sol: 桶或者二分答案+前缀和 此处只讲解桶。 对\(S\),维护\(cnt[x][y]\)表示字母\(x\)出现了\(y\)次所在的位置。 那么显然对于询问来说,...
At first, this solution is more simple than one solution i saw among the comments. now let's see how to solve this problem. First we know it just asks the minnium of cost. Obviously we should use DP. Let F[i] represent the minnium of cost to create the 'A' string which has n...
题目链接:https://codeforces.com/gym/102028 目录 A B C D E F G H I J A A. Xu Xiake in Henan Province time limit per test 2.0 s memory limit per test 1024 MB input standard input outpu...String 、StringBuilder、String String: 字符串是常量,创建之后不可改变 字符串字面值存储在字符...
Each test case contains a nonempty string s and an integer 1 ≤ n ≤ 100. The string s consists of no more than 100 characters whose ASCII values range from 33(‘!’) to 122(‘z’). Output For each test case, output the next n successors to the given string s in separate lines....