This contest cried me :'(

Whatever, new problems to learn new approaches

What is the reason of this server break downs? Poor servers, DDOS or smth? Can anyone explain it?

So sorry to bother you again, can anyone find the mistake? Here is the generation code.

using namespace std;
#define PB push_back
#define MP make_pair
typedef long long int ll;
int main(){
    std::ios::sync_with_stdio(false);
    cout<<1000<<endl;
    string t = "";
    for(int i = 0;i<1000;i++)
           t.PB('b');
    for(int i = 0;i<1000;i++){
        cout<<t<<" "<<1000<<" ";   
        for(int j = 1;j<=1000;j++)
            cout<<j<<" ";
        cout<<endl;
    }
    return 0;
}

I tried to hack Div2 C for TLE. So I tried hack through generated input, then spammed some large string and same index. I care that sum of the size of the strings are equal to 10^6 and sum of k values are equal to 10^6 but I got invalid input with this error "Validator 'val.exe' returns exit code 3 [FAIL Expected EOLN (stdin)]". What is the possible reason?

If anyone succeded to hack via generated input, can they show their generation code?

Actually it was good round if it is assumed as an educational round. :D

Finally I am blue again !!

I hope, I can see pink in future.

Understanding question div 2 B is harder than solving it

I hope this round wont cancel at the end of the delays

The important thing is:

I stucked and tried to solve third problem C "New Year and Rating" in the competetion. However, I couldn't solve. My codes reach 100 lines, but when I look the top-tier programmer from Final Standings, they solved about 10-15 line of code. It is clear that I have a trouble in way of thinking.

So, I wanna ask, why I couldn't? Do I need to work some algorithm design topics or just is it about experience?