import re

# Nacti soubor filename a vypis jeho prvni radek.
def print_first_row(filename):
    pass

# print_first_row("slovnik.txt")
# poradni


# Vypis prumernou delku vety (ve slovech) souboru filename. Za slovo povazujte cokoliv
# oddelene mezerami.
def print_avg_sentence_len(filename):
    pass

# print_avg_sentence_len("sherlock-holmes.txt")
# 8.564444270751915


# Vypis n nejcastejsich po sobe jdoucich dvojic slov (tzv. bigramu)
# souboru filename.
def print_n_most_bigrams(filename, n):
    pass

# print_n_most_bigrams("sherlock-holmes.txt", 5)
# ('of', 'the', 4220)
# ('in', 'the', 2910)
# ('to', 'the', 1753)
# ('at', 'the', 1271)
# ('that', 'I', 1240)


# Nacti soubor in_filename a do souboru out_filename z nej vypis:
# - slova s "oo"
def output_oo_words(in_filename, out_filename):
    pass

# - slova s "a" na 1. a posledni pozici
def output_axxxa_words(in_filename, out_filename):
    pass

# - slova obsahujici "a", "e", "i", "o" v tomto poradi (i nebezprostredne)
def output_aeio_words(in_filename, out_filename):
    pass

# - slova s ctverici z pismen "r", "s" a "t"
def output_rst4_words(in_filename, out_filename):
    pass

# Napoveda: Nepomohla by dekompozice?

# print_oo_words("slovnik.txt", "results_oo.txt")
# print_axxxa_words("slovnik.txt", "results_axxxa.txt")
# print_aeio_words("slovnik.txt", "results_aeio.txt")
# print_rst4_words("slovnik.txt", "results_rst4.txt")


# Ze souboru "jmena.csv" (nacti s parametrem encoding="utf-8") vypis:
# - jmeno s nejvetsim poctem vyskytu v roce 2002
def print_max_name_2002():
    pass

# - n jmen s nejvetsim poctem vyskytu v souctu vsech let
def print_n_max_names(n):
    pass

# print_max_name_1992()
# print_n_max_names(8)


# Napis funkci, ktera vypise n slov textu imitujiciho soubor filename
# na zaklade frekvenci po sobe jdoucich dvojic slov (viz prednaska).
def imitate_text(filename, n):
    pass

# imitate_text("sherlock-holmes.txt", 150)