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Cfbr

the code you have provided has used (n*s) while calculating the power which will overflow in cpp but gets accepted in python but in cpp to do binary exponentiation of (10,n*s) we will have to use euler totient function of mod

@soumyabhattacharjee1051

Ай бұрын

Not necessarily, 2 tricks you can use for the given constraints. Unsigned long long instead of long long to store r=10^s, and then you can use (r^n-1)/(r-1). You can check my code atcoder.jp/contests/abc357/submissions/54462244. Please like and subscribe if it is helpful

@thequacker6504

Ай бұрын

@@soumyabhattacharjee1051 got it thanks! Subscribed!