lupine/advent-of-code
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

2022 day 11

Browse Source
This commit is contained in:
Nick Thomas
2022-12-11 14:59:39 +00:00
parent 47a16a9b6a
commit 762f9b0700
4 changed files with 177 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
2022/11/input Normal file
View File

@@ -0,0 +1,55 @@
Monkey 0:
Starting items: 89, 73, 66, 57, 64, 80
Operation: new = old * 3
Test: divisible by 13
If true: throw to monkey 6
If false: throw to monkey 2
Monkey 1:
Starting items: 83, 78, 81, 55, 81, 59, 69
Operation: new = old + 1
Test: divisible by 3
If true: throw to monkey 7
If false: throw to monkey 4
Monkey 2:
Starting items: 76, 91, 58, 85
Operation: new = old * 13
Test: divisible by 7
If true: throw to monkey 1
If false: throw to monkey 4
Monkey 3:
Starting items: 71, 72, 74, 76, 68
Operation: new = old * old
Test: divisible by 2
If true: throw to monkey 6
If false: throw to monkey 0
Monkey 4:
Starting items: 98, 85, 84
Operation: new = old + 7
Test: divisible by 19
If true: throw to monkey 5
If false: throw to monkey 7
Monkey 5:
Starting items: 78
Operation: new = old + 8
Test: divisible by 5
If true: throw to monkey 3
If false: throw to monkey 0
Monkey 6:
Starting items: 86, 70, 60, 88, 88, 78, 74, 83
Operation: new = old + 4
Test: divisible by 11
If true: throw to monkey 1
If false: throw to monkey 2
Monkey 7:
Starting items: 81, 58
Operation: new = old + 5
Test: divisible by 17
If true: throw to monkey 3
If false: throw to monkey 5

58
2022/11/part1 Executable file
View File

@@ -0,0 +1,58 @@
#!/usr/bin/env python
import re
MONKEYS = []
def parse_factor(old, factor):
if factor == 'old':
return old
return int(factor)
OPS = {
'*': lambda old, factor: old * parse_factor(old, factor),
'+': lambda old, factor: old + parse_factor(old, factor),
}
with open('input') as f:
monkey = {'inspections': 0}
for line in f:
if line == "\n":
MONKEYS.append(monkey)
monkey = {'inspections': 0}
elif match := re.match('^Monkey (\d+):$', line):
monkey['id'] = int(match[1])
elif match := re.match('^ Starting items:', line):
_, items = line.rstrip().split(":")
monkey['items'] = list(map(int, items.split(", ")))
elif match := re.match('^ Operation: new = old ([\*\+]) (\w+)', line):
monkey['op_op'] = match[1]
monkey['op_factor'] = match[2]
elif match := re.match('^ Test: divisible by (\d+)$', line):
monkey['test_factor'] = int(match[1])
elif match := re.match('^ If (true|false): throw to monkey (\d+)$', line):
monkey['test_'+match[1]] = int(match[2])
else:
raise Exception('unhandled line: '+line)
MONKEYS.append(monkey)
for idx, monkey in enumerate(MONKEYS):
assert(idx == monkey['id'])
for r in range(1, 21): # round
for monkey in MONKEYS: # turn
for item in monkey['items']:
item = OPS[monkey['op_op']](item, monkey['op_factor'])
item = item // 3
if item % monkey['test_factor'] == 0:
MONKEYS[monkey['test_true']]['items'].append(item)
else:
MONKEYS[monkey['test_false']]['items'].append(item)
monkey['inspections'] = monkey['inspections'] + 1
monkey['items'] = []
by_inspections = sorted(MONKEYS, key=lambda monkey: monkey['inspections'])
print(by_inspections[-1]['inspections'] * by_inspections[-2]['inspections'])

62
2022/11/part2 Executable file
View File

@@ -0,0 +1,62 @@
#!/usr/bin/env python
import re
import math
MONKEYS = []
def parse_factor(old, factor):
if factor == 'old':
return old
return int(factor)
OPS = {
'*': lambda old, factor: old * parse_factor(old, factor),
'+': lambda old, factor: old + parse_factor(old, factor),
}
with open('input') as f:
monkey = {'inspections': 0}
for line in f:
if line == "\n":
MONKEYS.append(monkey)
monkey = {'inspections': 0}
elif match := re.match('^Monkey (\d+):$', line):
monkey['id'] = int(match[1])
elif match := re.match('^ Starting items:', line):
_, items = line.rstrip().split(":")
monkey['items'] = list(map(int, items.split(", ")))
elif match := re.match('^ Operation: new = old ([\*\+]) (\w+)', line):
monkey['op_op'] = match[1]
monkey['op_factor'] = match[2]
elif match := re.match('^ Test: divisible by (\d+)$', line):
monkey['test_factor'] = int(match[1])
elif match := re.match('^ If (true|false): throw to monkey (\d+)$', line):
monkey['test_'+match[1]] = int(match[2])
else:
raise Exception('unhandled line: '+line)
MONKEYS.append(monkey)
for idx, monkey in enumerate(MONKEYS):
assert(idx == monkey['id'])
# keep the size of the numbers down
lcm = math.lcm(*map(lambda monkey: monkey['test_factor'], MONKEYS))
for r in range(0,10000): # round
for monkey in MONKEYS: # turn
for item in monkey['items']:
item = OPS[monkey['op_op']](item, monkey['op_factor'])
item = item % lcm
if item % monkey['test_factor'] == 0:
MONKEYS[monkey['test_true']]['items'].append(item)
else:
MONKEYS[monkey['test_false']]['items'].append(item)
monkey['inspections'] = monkey['inspections'] + 1
monkey['items'] = []
by_inspections = sorted(MONKEYS, key=lambda monkey: monkey['inspections'])
print(by_inspections[-1]['inspections'] * by_inspections[-2]['inspections'])

4
README.md
View File

@@ -9,7 +9,7 @@ a programming language I'm interested in learning more about.
2018, 2019, and 2020 were in their own separate repositories, but have been
`git subtree`'d into this one - no point creating a new repository every year.
* [2022](https://code.ur.gs/lupine/advent-of-code/src/branch/main/2022) 🌟 `20` - Python
* [2022](https://code.ur.gs/lupine/advent-of-code/src/branch/main/2022) 🌟 `22` - Python
* [2021](https://code.ur.gs/lupine/advent-of-code/src/branch/main/2021) 🌟 ` 5` - Python
* [2020](https://code.ur.gs/lupine/advent-of-code/src/branch/main/2020) 🌟 `20` - Javascript
* [2019](https://code.ur.gs/lupine/advent-of-code/src/branch/main/2019) 🌟 `22` - Zig
@@ -18,6 +18,6 @@ a programming language I'm interested in learning more about.
* 2016 🌟 `16` - LISP?
* 2015 🌟 ` 9` - Ruby?
Total: 🌟 `98`
Total: 🌟 `100`
Maybe I'll backfill some of the old years one day.