New Year's '16 P1 - Late Christmas Shopping

Points: 3 (partial)

Time limit: 2.0s

Memory limit: 256M

Authors:

Problem type

Did you know that eagles hibernate? At least, one eagle does. When the winter break started, FatalEagle decided that he would retreat into his mancave for a little while to hibernate and take a break from all the hustle-bustle of school life. But when he finally came out, he discovered that he had missed Christmas and it was already the New Year! What a disaster! If he doesn't get the other DMOJ admins their presents, they will definitely refuse when he asks them to be his data slaves!

Luckily, there's a special store where the boxing week sales are still going on so FatalEagle can still get some cheap presents. FatalEagle brought $N$ ~N~ shopping bags with him, one for each DMOJ admin's presents. FatalEagle is known for being a calm, cool, and collected shopper normally. When browsing the aisles of the store however, he found that their prices were unbelievably low! Amazed at his luck, FatalEagle went on a shopping spree, grabbing all that he could and shoving them into his shopping bags indiscriminately.

It was only when he lined up for the checkout that he realized he may have made a mistake. What if two or more DMOJ admins end up getting the same present? FatalEagle can't let his reputation as a great gifter be soiled like that! As the nice cashier of the store, you have agreed to help FatalEagle check if multiple bags contain the same item.

Input Specification

The first line of input will contain $N$ ~N~ $(1 \le N \le 3)$ ~(1 \le N \le 3)~, the number of shopping bags.

Each of the next $N$ ~N~ lines will contain $M$ ~M~ $(1 \le M \le 3)$ ~(1 \le M \le 3)~, the number of items in that bag, followed by $M$ ~M~ integers, the label of each item. The labels of the items will be between $1$ ~1~ and $10$ ~10~, inclusive.

Output Specification

Output YES if there's at least one gift that multiple admins will get, otherwise output NO.

Sample Input 1

2
3 1 2 3
3 2 4 6

Sample Output 1

YES

Explanation for Sample Output 1

Both admins will get item 2.

Sample Input 2

2
3 1 3 5
3 2 4 6

Sample Output 2

NO

Comments

-2

imthekiller commented on Jan. 1, 2016, 10:02 p.m.

Please i'm new to programming i need help what does "Your output (clipped)" mean?

3

odaniel commented on Jan. 1, 2016, 10:06 p.m.

It's a little hint the website gives you as to why your program failed called partial output - it gives you a small portion of your code's output. However, the partial output sometimes doesn't play nicely with the question, and so the partial output is zero. Basically, you get no help :) good luck!

3

aurpine commented on Jan. 1, 2016, 6:39 p.m.

I think the last test case is wrong, or it exceeds the input constraints.

(and I don't know why I'm getting WA :'( )

-1

XIAOAGE commented on Jan. 1, 2016, 10:21 p.m.

Yea, I have used 5 approaches. All give me WA :(

1

odaniel commented on Jan. 1, 2016, 10:41 p.m.

Keep looking. There's something that you've missed.

-1

cheesecake commented on Jan. 1, 2016, 6:45 p.m.

I've just checked it. It's correct and fits within the constraints.