Series
Have you heard about Advent of Code? It is an annual event with daily tasks to solve for programmers. This year, the first two tasks are to find numbers from 200 lines text file which in sum give 2020. In fact, you are asked for the result of their...
This time, the tasks are to count valid passwords from a text file. Each line of text contains two numbers, a letter, and a password. Example input: 1-8 n: dpwpmhknmnlglhjtrbpx 11-12 n: frpknnndpntnncnnnnn 4-8 t: tmttdtnttkr 12-18 v: vvvvvvvqvvvvvqvv...
This time the input for puzzles is a text file that pretends to be a map. Your mission is to count the trees on your way. In the first task, you move always 3 steps right and 1 step down. In the second task, there are 5 different ways of taking steps...
Another day, another problem to solve. This time, you are asked for some data validation. You are supposed to parse entries from a text file. In the first task, only validating the presence of some keys is required. In the second one, you have to ch...
Here is my solution for puzzles of the 5th day of the Advent of Code 2020 event. The crucial thing is to notice that entries in the input file are just binary numbers where F and L stand for 0, B and R stand for 1. After converting them to decimal ...
This time input file contains many groups of entries. Entries are separated with a single newline character while groups are separated with two of them. Your job in the first puzzle is to find how many unique letters occur in each group and count the...
