Hello everyone at codeforces How can you get all the data sets of a problem in codeforces?

Hello codeforces Let's say an F(string s) as the number of different substrings that s has. Which is the maximum F(string x) such that x at most has 100000 characters and a dictionary of 26 characters.

Hello for everyone in codeforces. In this last contest I sent two identical solutions only , one gave me Wrong Answer in test case 1, although in my computer it was good but I sent that same solution with one more command (cout << "";) which I see insignificant and should not vary the result and gives Accepted . I do not know what could have happened, please could you help me understand my mistake. Thank you in advance.

these are my shipments :

1-Wrong Answer in test case one

2-Accepted

Hello everyone in codeforces. Happy New Year !!! I have recently been learning about Mo Algortithm and I need some problems. Someone can advise me some interesting problems where this algorithm applies. Greetings and thanks in advance.