961-22 guruh, Musobaqa#1
Problem Tasks
| # | Date | State |
|---|
Not Contest
| # | Date | State |
|---|
C. Yakuniy_2_A
Time limit : 1000 ms
Memory limit : 64 mb
Ifodani qiymatini hisoblang
$$s = \frac{1}{x^1} + \frac{2}{x^2} + ... + \frac{n}{x^n}$$
Kiruvchi ma’lumotlar: Ikkita butun son $n$ va $x$ $(0 < n,x \le 10)$
Chiquvchi ma’lumotlar: Bitta son masala yechimi. Yechim $10^{-2}$ aniqlikda chiqarilsin .
| Input |
|---|
| 1 1 |
| Output |
| 1.00 |
| Input |
|---|
| 5 1 |
| Output |
| 15.00 |