prep for 2021; implemented 2017d1 as reference

aoclib/__init__.py

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+from .day import *
+from .tools import *
+from .output import *
+from .performance import *

aoclib/day.py

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+import os
+from typing import List, Any
+from .tools import splitLine
+from .output import printSolution
+
+BASE_PATH = os.path.dirname(os.path.dirname(__file__))
+INPUTS_PATH = os.path.join(BASE_PATH, 'inputs')
+
+
+class AOCDay:
+    day: int
+    input: List  # our input is always a list of str/lines
+    test_solutions_p1: List
+    test_solutions_p2: List
+
+    def __init__(self, day):
+        self.day = day
+        with open(os.path.join(INPUTS_PATH, "input%02d" % day)) as f:
+            self.input = f.read().splitlines()
+
+    def part1(self) -> Any:
+        pass
+
+    def part2(self) -> Any:
+        pass
+
+    def test_part1(self) -> bool:
+        live_input = self.input.copy()
+        for case, solution in enumerate(self.test_solutions_p1):
+            with open(os.path.join(INPUTS_PATH, "test_input%02d_1_%d" % (self.day, case))) as f:
+                self.input = f.read().splitlines()
+
+            check = self.part1()
+            printSolution(self.day, 1, check, solution, case)
+            if check != solution:
+                return False
+
+        self.input = live_input
+        return True
+
+    def test_part2(self) -> bool:
+        live_input = self.input.copy()
+        for case, solution in enumerate(self.test_solutions_p2):
+            with open(os.path.join(INPUTS_PATH, "test_input%02d_2_%d" % (self.day, case))) as f:
+                self.input = f.read().splitlines()
+
+            check = self.part2()
+            printSolution(self.day, 2, check, solution, case)
+            if check != solution:
+                return False
+
+        self.input = live_input
+        return True
+
+    def getInputListAsType(self, return_type):
+        """
+        get input as list casted to return_type, each line representing one list entry
+        """
+        return [return_type(i) for i in self.input]
+
+    def getMultiLineInputAsArray(self, return_type=None, join_char=None):
+        """
+        get input for day x as 2d array, split by empty lines
+        """
+        lines = self.input
+        lines.append('')
+
+        return_array = []
+        line_array = []
+        for line in lines:
+            if not line:
+                if join_char:
+                    return_array.append(join_char.join(line_array))
+                else:
+                    return_array.append(line_array)
+                line_array = []
+                continue
+
+            if return_type:
+                line_array.append(return_type(line))
+            else:
+                line_array.append(line)
+
+        return return_array
+
+    def getInputAs2DArray(self, return_type=None):
+        """
+        get input for day x as 2d-array (a[line][pos])
+        """
+        if return_type is None:
+            return self.input  # strings already act like a list
+        else:
+            return_array = []
+            for line in self.input:
+                return_array.append([return_type(i) for i in line])
+
+            return return_array
+
+    def getInputAsArraySplit(self, split_char=',', return_type=None):
+        """
+        get input for day x with the lines split by split_char
+        if input has only one line, returns a 1d array with the values
+        if input has multiple lines, returns a 2d array (a[line][values])
+        """
+        if len(self.input) == 1:
+            return splitLine(line=self.input[0], split_char=split_char, return_type=return_type)
+        else:
+            return_array = []
+            for line in self.input:
+                return_array.append(splitLine(line=line, split_char=split_char, return_type=return_type))
+
+            return return_array

aoclib/output.py

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+def printSolution(day, part, solution, test=None, test_case=0):
+    if test is not None:
+        print(
+            "(TEST case%d/day%d/part%d) -- got '%s' -- expected '%s' -> %s"
+            % (test_case, day, part, solution, test, "correct" if test == solution else "WRONG")
+        )
+    else:
+        print("Solution to day %s, part %s: %s" % (day, part, solution))

aoclib/performance.py

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+def print_execution_time(day, part, avg_time):
+    units = ['s', 'ms', 'μs', 'ns']
+    unit = 0
+    while avg_time < 1:
+        avg_time *= 1000
+        unit += 1
+
+    print("Average execution time for day %s part %s: %1.2f%s" % (day, part, avg_time, units[unit]))

aoclib/tools.py

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+def splitLine(line, split_char=',', return_type=None):
+    if split_char:
+        line = line.split(split_char)
+
+    if return_type is None:
+        return line
+    else:
+        return [return_type(i) for i in line]

day01.py

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+from aoclib import AOCDay
+
+
+class Day(AOCDay):
+    test_solutions_p1 = [3, 4, 0, 9]
+    test_solutions_p2 = [6, 0, 4, 12, 4]
+
+    def part1(self):
+        res = 0
+        number = self.input[0]
+        if number[0] == number[-1]:
+            res += int(number[0])
+
+        for i in range(len(number) - 1):
+            if number[i] == number[i+1]:
+                res += int(number[i])
+
+        return res
+
+    def part2(self):
+        res = 0
+        number = self.input[0]
+        half = len(number) // 2
+        for i in range(half):
+            if number[i] == number[i+half]:
+                res += int(number[i]) * 2
+
+        return res

inputs/input01

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+516299281491169512719425276194596424291268712697155863651846937925928456958813624428156218468331423858422613471962165756423837756856519754524985759763747559711257977361228357678293572698839754444752898835313399815748562519958329927911861654784216355489319995566297499836295985943899373615223375271231128914745273184498915241488393761676799914385265459983923743146555465177886491979962465918888396664233693243983969412682561799628789569294374554575677368219724142536789649121758582991345537639888858113763738518511184439854223386868764189133964543721941169786274781775658991329331759679943342217578532643519615296424396487669451453728113114748217177826874953466435436129165295379157226345786756899935747336785161745487933721527239394118721517195849186676814232887413175587327214144876898248571248517121796766248817366614333915154796983612174281237846165129114988453188844745119798643314857871527757831265298846833327863781341559381238458322786192379487455671563757123534253463563421716138641611915686247343417126655317378639314168461345613427262786624689498485599942336813995725145169355942616672812792174556866436158375938988738721253664772584577384558696477546232189312287262439452141564522329987139692281984783513691857538335537553448919819545332125483128878925492334361562192621672993868479566688564752226111784486619789588318171745995253645886833872665447241245329935643883892447524286642296955354249478815116517315832179925494818748478164317669471654464867111924676961162162841232473474394739793968624974397916495667233337397241933765513777241916359166994384923869741468174653353541147616645393917694581811193977311981752554551499629219873391493426883886536219455848354426461562995284162323961773644581815633779762634745339565196798724847722781666948626231631632144371873154872575615636322965353254642186897127423352618879431499138418872356116624818733232445649188793318829748789349813295218673497291134164395739665667255443366383299669973689528188264386373591424149784473698487315316676637165317972648916116755224598519934598889627918883283534261513179931798591959489372165295

inputs/test_input01_1_0

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+1122

inputs/test_input01_1_1

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+1111

inputs/test_input01_1_2

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+1234

inputs/test_input01_1_3

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+91212129

inputs/test_input01_2_0

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+1212

inputs/test_input01_2_1

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+1221

inputs/test_input01_2_2

@@ -0,0 +1 @@
+123425

inputs/test_input01_2_3

@@ -0,0 +1 @@
+123123

inputs/test_input01_2_4

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+12131415

main.py

@@ -1,16 +1,79 @@
-# This is a sample Python script.
+#!/usr/bin/env python3
 
-# Press Umschalt+F10 to execute it or replace it with your code.
-# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.
+import aoclib
+import argparse
+import importlib
+import os
+import sys
+import timeit
 
+TIMEIT_NUMBER = 50
 
-def print_hi(name):
-    # Use a breakpoint in the code line below to debug your script.
-    print(f'Hi, {name}')  # Press Strg+F8 to toggle the breakpoint.
+argument_parser = argparse.ArgumentParser()
+argument_parser.add_argument("-d", "--day", help="specify day to process; leave empty for ALL days", type=int)
+argument_parser.add_argument("-t", "--test", help="run test cases", action="store_true", default=False)
+argument_parser.add_argument("-p", "--part", help="run only part x", choices=[1, 2], type=int)
+argument_parser.add_argument("--timeit", help="measure execution time", action="store_true", default=False)
+argument_parser.add_argument(
+    "--timeit-number",
+    help="build average time over this many executions",
+    type=int,
+    default=TIMEIT_NUMBER
+)
+flags = argument_parser.parse_args()
 
+import_day = ""
+if flags.day:
+    import_day = "%02d" % flags.day
 
-# Press the green button in the gutter to run the script.
-if __name__ == '__main__':
-    print_hi('PyCharm')
+imported = []
+for _, _, files in os.walk(aoclib.BASE_PATH):
+    for f in files:
+        if f.startswith('day' + import_day) and f.endswith('.py'):
+            lib_name = f[:-3]
+            globals()[lib_name] = importlib.import_module(lib_name)
+            imported.append(lib_name)
 
-# See PyCharm help at https://www.jetbrains.com/help/pycharm/
+    break
+
+for lib in sorted(imported):
+    day = int(lib[-2:])
+    day_class = getattr(globals()[lib], "Day")(day)
+    if not flags.test:
+        if not flags.part or flags.part == 1:
+            if not day_class.test_part1():
+                print("TEST FAILED! Aborting.")
+                sys.exit(1)
+
+        if not flags.part or flags.part == 2:
+            if not day_class.test_part2():
+                print("TEST FAILED! Aborting.")
+                sys.exit(1)
+
+    if not flags.part or flags.part == 1:
+        if not flags.timeit:
+            if flags.test:
+                day_class.test_part1()
+            else:
+                aoclib.printSolution(day, 1, day_class.part1())
+        else:
+            exec_time = timeit.timeit(
+                'day_class.part1()',
+                globals=globals(),
+                number=flags.timeit_number
+            ) / flags.timeit_number
+            aoclib.print_execution_time(day, 1, exec_time)
+
+    if not flags.part or flags.part == 2:
+        if not flags.timeit:
+            if flags.test:
+                day_class.test_part2()
+            else:
+                aoclib.printSolution(day, 2, day_class.part2())
+        else:
+            exec_time = timeit.timeit(
+                'day_class.part2()',
+                globals=globals(),
+                number=flags.timeit_number
+            ) / flags.timeit_number
+            aoclib.print_execution_time(day, 2, exec_time)