# Points Calculation

To calculate the sum of points $P$ awarded to each solver, the points for challenges across all levels (I, II, III, X) are added up. The points for level X challenges are awarded manually, the points for level I, II, III challenges are calculated dynamically based on the following formula:

$$P=(\sum _{i=1}^{L}(\sum _{j=1}^{{N}_{i}}\frac{{10}^{i}\ast 10}{f(d)}))$$

$L=3$ because there are three dynamically calculated levels, ${N}_{i}$ denotes the number of challenges solved in level $i$, and the function $f(d)$ is used to calculate the points depending on the number of days passed between the publication of the challenge and the submission of the solution:

$$f(d)=1-\frac{1}{{2}^{1-c}\ast (d+1{)}^{c}}$$

The coefficient $c$ depends on the level $i$ and is defined as follows:

$$c=\{\begin{array}{ll}1,& \text{if}i=1,\\ 0.25,& \text{if}i=2,\\ 0.1,& \text{if}i=3.\end{array}$$

Consequently, the points for higher levels decline slower than for lower levels.