### a1000's blog

By a1000, history, 21 month(s) ago,

Hello there, regarding the problem 58A Chat room (link: https://codeforces.com/problemset/problem/58/A) Test case 5 is "helhcludoo" which is giving me WA and it's wrong according to the problem statement.

My code:-

String s = sc.next(); String regex = ".*(h+)(e+)(l+)(l+)(o+).*"; System.out.println(s.matches(regex)?"YES":"NO");

Am I doing something wrong?

• -22

 » 21 month(s) ago, # |   +21 The problem wants you to check if the given string contains the subsequence $hello$. Your regex expression does something different.
•  » » 21 month(s) ago, # ^ |   0 My regex may be wrong but in the test case ""helhcludoo" has the answer as "YES" but I don't see "hello" in there.
•  » » » 21 month(s) ago, # ^ |   0 I've underlined it: $\underline{hel}hc\underline{l}ud\underline{o}o$
•  » » » » 21 month(s) ago, # ^ |   0 Ah, I see the "hello" isn't supposed to be together. Thanks for helping!