Gửi bài giải
Điểm:
1,00 (OI)
Giới hạn thời gian:
1.0s
Giới hạn bộ nhớ:
256M
Input:
stdin
Output:
stdout
Nguồn bài:
Dạng bài
Ngôn ngữ cho phép
C, C++, Java, Kotlin, Pascal, PyPy, Python, Scratch
Nam loves chatting with friends on the Internet. He has set up a chat room with the condition that before entering the chat room, everyone must greet first.
A greeting is defined as a string of characters, consisting only of letters, without spaces, such that when some letters are removed, it becomes the word hello
. Of course, the order of the characters must not be changed; only some letters can be removed.
- For example: when Binh wants to enter the chat room and types
ahhellllloou
, the system will check this string and automatically remove some characters to form the wordhello
. Thus, Binh is allowed into the chat room.
But when Binh types hlelo
, the system cannot remove any characters to form the word hello
. Thus, Binh is not allowed into the chat room.
Requirement: Given ~N~ greetings, determine which greetings are accepted.
Input
- The first line contains a positive integer ~N~ ~(N ≤ 10^3)~.
- The next ~N~ lines, each containing a string of letters that Binh intends to type, with a length from ~1~ to ~10^3~ characters.
Output
- Includes ~N~ lines, each corresponding to a greeting. If the greeting is accepted, output
YES
; otherwise, outputNO
.
Sample Input
4
ahhellllloouJack
hleloCo
helhcludooBo
HelhcLudooCon
Sample Output
YES
NO
YES
NO
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