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use Nim's style agnosticism to bring snake_case in

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Luke Hubmayer-Werner 2022-12-02 23:36:10 +10:30
parent 60e7179025
commit 46e18b1c1e
1 changed files with 18 additions and 17 deletions
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2022/day2.nim
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@ -1,28 +1,29 @@
from std/math import floorMod
{.hint[name]: off.} # snake_case > camelCase
from std/math import floor_mod
import sequtils
import strutils
import tables
proc `%%` (a: int, b: int): int = floorMod(a, b)
proc `%%` (a: int, b: int): int = floor_mod(a, b)
let moveMap = {'A': 1, 'B': 2, 'C': 3, 'X': 1, 'Y': 2, 'Z': 3}.toTable
let rounds = splitlines strip readFile "day2-input"
let move_map = {'A': 1, 'B': 2, 'C': 3, 'X': 1, 'Y': 2, 'Z': 3}.to_table
let rounds = split_lines strip read_file "day2-input"
# Part 1
proc round1Score(round: string): int =
let them = moveMap[round[0]]
let us = moveMap[round[2]]
let winScore = [3, 6, 0][(us - them) %% 3]
us + winScore
proc round_1_score(round: string): int =
let them = move_map[round[0]]
let us = move_map[round[2]]
let win_score = [3, 6, 0][(us - them) %% 3]
us + win_score
echo rounds.map(round1Score).foldl(a + b)
echo rounds.map(round_1_score).fold_l(a + b)
# Part 2
proc round2Score(round: string): int =
let them: int = moveMap[round[0]]
let usDelta = moveMap[round[2]] - 2
let us: int = ((them + usDelta - 1) %% 3) + 1
let winScore = [3, 6, 0][(us - them) %% 3]
us + winScore
proc round_2_score(round: string): int =
let them: int = move_map[round[0]]
let us_delta = move_map[round[2]] - 2
let us: int = ((them + us_delta - 1) %% 3) + 1
let win_score = [3, 6, 0][(us - them) %% 3]
us + win_score
echo rounds.map(round2Score).foldl(a + b)
echo rounds.map(round_2_score).fold_l(a + b)