jezyki-formalne/TaskA03/task3.py

with open("polish_wiki_excerpt.in", encoding="utf-8") as f:
    lines = f.readlines()
    for line in lines:
        line = line.strip()
        line = line.split()

        flag1 = False   # sprawdzam czy slowo jest liczba miedzy 1900 a 1999
        flag2 = False   # sprawdzam czy za liczba jest 'r.'

        for word in line:
            if word == 'Terespola':
                pass
            if flag1:
                if word[:2] == 'r.':
                    flag2 = True
                    break
                else:
                    flag1 = False

            if word[len(word)-4 : len(word)-2] == '19':
                if word[2] in '0123456789' and word[3] in '0123456789':
                    flag1 = True


        if flag1 is True and flag2 is True:
            goodLine = ' '.join(line)
            print(goodLine)