SIGSEGV RTE in CLEANRBT - Cleaning Robot

[jonathanr]

Hi.I have reviewed my code multiple times and I don´t get where this error is coming from, I even added a few extra checks to make sure I am not accessing some invalid memory. Please, can someone review my code and tell me why I am receiving this veredict?

Removed after AC

[simes]

dirtynum[{i,j}]=(int)dirtynum.size()-1;

What value does this put into the map for the first entry, and then what happens when it’s used to modify the mask?

[jonathanr]

I was thinking about what you pointed out to me, so I decided to change my code. Instead of relying in the map size to assign the “id” to each dirty cell I kept track in a separate variable. And got Accepted!

I guess the order of execution of the instructions in that statement is different in my machine and in SPOJ’s one?

Anyway, thank you so much for your help

[simes]

When I ran the bit of code I highlighted, the first entry got an ID of -1 – which obviously screwed up the mask. When I removed the -1 from the expression, the code gave the expected answers for my testing.

You might want to edit your post to remove your code, or else there will be many copy’n’paste solutions submitted.