BUGLIFE - A Bug’s Life

Professor Hopper is researching the sexual behavior of a rare species of bugs. He assumes that they feature two different genders and that they only interact with bugs of the opposite gender. In his experiment, individual bugs and their interactions were easy to identify, because numbers were printed on their backs.

Given a list of bug interactions, decide whether the experiment supports his assumption of two genders with no homosexual bugs or if it contains some bug interactions that falsify it.


The first line of the input contains the number of scenarios. Each scenario starts with one line giving the number of bugs (at least one, and up to 2000) and the number of interactions (up to 1000000) separated by a single space. In the following lines, each interaction is given in the form of two distinct bug numbers separated by a single space. Bugs are numbered consecutively starting from one.


The output for every scenario is a line containing “Scenario #i:”, where i is the number of the scenario starting at 1, followed by one line saying either “No suspicious bugs found!” if the experiment is consistent with his assumption about the bugs’ sexual behavior, or “Suspicious bugs found!” if Professor Hopper’s assumption is definitely wrong.


3 3
1 2
2 3
1 3
4 2
1 2
3 4

Scenario #1:
Suspicious bugs found!
Scenario #2:
No suspicious bugs found!

hide comments
sabbir0152: 2020-09-20 18:36:57

Easy problem on bipartite graph

blackpearl_15: 2020-09-11 13:03:27

Don't see the comments, untill you are frustrated with the problem.......

ckanzz: 2020-08-25 12:40:40

A typical case of bipartite graph implementation look it up

jrseinc: 2020-08-14 08:28:46

Those who are getting WA remember to check for disconnected graphs as well.
Happy Coding!

gnomegeek: 2020-08-14 08:19:28

simple bipartite graph test

shubhamtomar95: 2020-08-02 20:27:10

check your code for the following test case:
4 3
1 2
3 4
2 4

Last edit: 2020-08-02 21:42:13
alpeshjamgade: 2020-07-29 08:37:12

I did a stupid mistake.......if youre declaring your variable in global namespace please dont forget to clear everything out for each new test case...my code was right from the first submission...did this mistake and got several WA... anyways learnt something important

tarun_28: 2020-07-28 18:01:19

Just implement Bipartite Graph Test

rehank478: 2020-07-27 12:33:55

If taking adjacency list and Color array global then make it empty before taking next input.

pradeep_7: 2020-07-24 04:48:43

Hint :
Cycle + Odd Number

Last edit: 2020-07-24 04:49:12

Added by:Daniel Gómez Didier
Time limit:1s-5s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ERL JS-RHINO NODEJS PERL6 VB.NET
Resource:2007 PUJ - Circuito de Maratones ACIS / REDIS