Hello ! I am an IOI 2016 contestant and thinking about my experience from the last year IOI I had two major problems with the contest environment making me loose lot's of precious time :

1) testing my solution with the grader provided was really unfamiliar for me
2) problems do not require I/O routine but instead coding a function that takes input as parameter

(and such difficulties was enhanced by contest stress )

I know such technicalities may be trivial for a veteran contestant but I really don't to see my effort lost because of that , so it will be nice if someone provides some help :D

thanks !

hello ! I was solving this problem from Codechef

I think that the solution on the editorial is wrong and it should fail this exemple :

6 6

1 3 1

1 2 1

2 4 1

3 5 2

4 5 2

4 6 3

the answer is 33 while the tester's algorithm output 34

Am I wrong ?

EDIT : you can find the tester's solution at the end of the Editorial

hello

I'm getting an error that I couldn't inderstand : "wrong output format Unexpected end of file — int32 expected"

here is my code : (http://mirror.codeforces.com/contest/550/submission/11450063)

can anyone help me

thanks!

hello !

I am new at codeforces and I wonder how can found problem of a specific tag

thanks in advance