Interesting Graph Problem

Правка en1, от Vasiljko, 2017-10-07 22:40:02

Given graph with N vertices and M edges. You need to find if there is a way to partition the graph in two parts in such a way that these parts are connected with m/2 edges. Division is integer division. If there is solution print it out, else print -1. Input: first two numbers are N and M. Next M lines are pairs of integers (X,Y) representing edge between vertices X and Y. Output: If there is no solution, print -1; Else, in the first line print size of two groups (N1,N2) , in second line print N1 numbers representing vertices in first group, same for second group.

Input:
8 10
1 2
1 5
1 6
5 6
2 6
3 8
3 7
3 4
4 8
7 8

Output:
4 4
5 6 7 8
1 2 3 4

История

 
 
 
 
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  Rev. Язык Кто Когда Δ Комментарий
en6 Английский Vasiljko 2017-10-08 11:39:43 9 Tiny change: 'cted with m/2 edges' -> 'cted with at least m/2 edges'
en5 Английский Vasiljko 2017-10-08 10:53:06 38 Tiny change: ' \n1 2 3 4' -> ' \n1 2 3 4\n\n\nYour help would be appreciated. '
en4 Английский Vasiljko 2017-10-07 22:43:24 14
en3 Английский Vasiljko 2017-10-07 22:42:55 57
en2 Английский Vasiljko 2017-10-07 22:40:30 2 Tiny change: ', print -1; Else, in ' -> ', print -1. Else, in '
en1 Английский Vasiljko 2017-10-07 22:40:02 878 Initial revision (published)