#OOP

1. fib.java -> finds the nth fibbonaci number

2. bity.java -> finds the sum of bits in binary numbers from 1 to n in O(logn)

3. manacher.java -> Manacher's algorithm

4. belki.java -> https://onlinejudge.org/external/100/p10003.pdf

5. sito_erastotenesa.java -> Eratosthenes sieve

6. farmer.zip -> a simple project that simulates having a farm - harvesting etc.

7. wymierne.zip -> classes that reprezent rational numbers - adding, multiplicating them...

8. szachy.zip -> simulation of chess play