Masala #0347
Nisbat 2
Quyidagi formulani hisoblang:
\(\cfrac{a + a^2+a^3+\dots+a^n}{a^{-1}+a^{-2}+\dots+a^{-n}}\)
Kiruvchi ma'lumotlar:
INPUT.TXT kirish faylining birinchi satrida ikkita natural son \(a \le 10^9, n \le 1000\) beriladi
Chiquvchi ma'lumotlar:
Masala javobini \(10^9+7\) ga bo'lgandagi qoldiqni chop eting
Misollar
| # | input.txt | output.txt |
|---|---|---|
| 1 |
2 2 |
8 |
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