My program got WA8 all the time.
I have added next string to my program

    if(n>50)         vector<long> xxx(1000000);

and it got AC after that!!!
Variable "xxx" never uses in my code! If i delete this line it got WA8!!!!

Please, send your program to my e-mail

hi. I have sent you my program about an week ago. So what was the problem?

Can you send your solution for me:)
I'll try to help
also I guarantee that I'll help with any of my solved  problems
be shure I'll not cheat you;)

Dear admin,
I'm also facing problem on WA-8. Although the guide page says that "the input data of this test case is not available, the solution author should find the cause of the error on their own", I have no idea on what error my program has. So I'm seeking for your help, can I contact you using email?