a1000's blog

Wrong Test Case?
By a1000, history, 4 years ago, In English

Hello there, regarding the problem 58A Chat room (link: https://mirror.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?

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Comments Comments (3)
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4 years ago, # |
  Vote: I like it +21 Vote: I do not like it

The problem wants you to check if the given string contains the subsequence $$$hello$$$. Your regex expression does something different.

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    4 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    My regex may be wrong but in the test case ""helhcludoo" has the answer as "YES" but I don't see "hello" in there.

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      4 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      I've underlined it: $$$\underline{hel}hc\underline{l}ud\underline{o}o$$$

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