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import random

def sort(l):
    return [(max_n := n) for max_n in [l[0]] for n in l if n >= max_n]

def proc(s):
    l = list(eval(s))
    print(s)
    print("Origin:", l)
    print("Sorted:", sort(l))
    print()

proc("range(10)")
proc("reversed(range(10))")
proc("random.sample(range(10), 10)")

#!/usr/bin/env python3

from pathlib import Path
import re

re_terminate = re.compile("<<(.*)$")

def sortdat(f):
    with f.open() as fin:
        s = fin.read()

    kvs = []

    lines = s.split("\n")

    cur = 0

    while cur < len(lines):
        if len(lines[cur]) == 0:
            cur += 1
            continue
        if not "=" in lines[cur]:
            return
        if lines[cur].startswith("*"):
            line = lines[cur]
            terminate = re_terminate.search(line).group(1)
            i = cur + 1
            while not terminate in lines[i]:
                i += 1
            kvs.append("\n".join(lines[cur:i+1]))
            cur = i
        else:
            kvs.append(lines[cur])
        cur += 1

    with f.open("w", encoding="utf8") as fout:
        fout.write("\n".join(sorted(kvs)) + "\n")

if __name__ == "__main__":
    for f in Path("/usr/local/apache2/htdocs").glob("**/*.dat"):
        sortdat(f)

#!/usr/bin/env python3

from datetime import date, timedelta
from math import sqrt

def daterange(begin, end):
    cursor = begin
    oneday = timedelta(days=1)

    while True:
        yield cursor
        if cursor == end:
            return
        cursor += oneday

def primedates(begin, end):
    remove_composite = lambda l, k:[n for n in l if n % k != 0]

    days = (d.year * 10000 + d.month * 100 + d.day
                for d in daterange(begin, end))
    l = remove_composite(days, 2)

    limit = int( sqrt( max(l) ))

    searchlist = remove_composite(range(3, limit + 1), 2)

    while searchlist:
        n = searchlist[0]
        searchlist = remove_composite(searchlist, n)
        l = remove_composite(l, n)
        
    print(list(l))

import cProfile
#cProfile.run("primedate(date(1,1,1), date(9999, 12, 31))")
cProfile.run("primedates(date(1970,1,1), date(2038, 1, 19))")

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