Discussion @ 1692. Flags for Provinces @ Timus Online Judge

Rahul sample output wrong [7] // Problem 1692. Flags for Provinces 14 Mar 2009 13:51

The sample output is wrong, it should be :
4
3 1 2 3
3 2 1 4
3 1 3 4
3 2 3 4

Pavel Khaustov [Tomsk PU] Re: sample output wrong [6] // Problem 1692. Flags for Provinces 14 Mar 2009 13:56

You are wrong! Color 3 is in 3 flags.

ken Re: sample output wrong [5] // Problem 1692. Flags for Provinces 14 Mar 2009 14:03

Why aren't they are:
4
2 1 2
2 1 4
2 2 3
2 3 4

Maxim Dvoynishnikov (Dnipropetrovsk SU) Re: sample output wrong // Problem 1692. Flags for Provinces 14 Mar 2009 14:04

Read the task attentively.

HIV Re: sample output wrong [3] // Problem 1692. Flags for Provinces 14 Mar 2009 14:05

The 1st and 4th flag have no common color.

Swifty Re: sample output wrong [2] // Problem 1692. Flags for Provinces 14 Mar 2009 14:11

Can't it be:
4
2 1 4
2 1 3
2 2 3
2 2 4
???

Edited by author 14.03.2009 14:13

Swifty Re: sample output wrong // Problem 1692. Flags for Provinces 14 Mar 2009 14:19

Sorry understood my mistake

victor_sch Re: sample output wrong // Problem 1692. Flags for Provinces 14 Mar 2009 14:48

No, becouse any two flags must have one joint colour. So flags 1 4 and 2 3 are incorrect.

Discussion of Problem 1692. Flags for Provinces