Add day03 2020

2020/day03.py

@@ -0,0 +1,44 @@
+#!/usr/bin/python3
+"""
+Jour 03 du défi Advent Of Code pour l'année 2020
+"""
+
+def read_sample():
+    """récupère les entrées depuis le fichier texte correspondant"""
+    with open('inputs/day03.txt', 'r') as f:
+        sample = f.read().split('\n')
+    sample = [ i for i in sample if i != '' ]
+    return sample
+
+def slope(mv_x, mv_y, sample):
+    """Partie 1 du défi"""
+    pos = (0,0)
+    n1 = len(sample)
+    n2 = len(sample[0])
+    count = 0
+    while pos[1] < n1-mv_y:
+        pos = ((pos[0]+mv_x)%n2, (pos[1]+mv_y))
+        if sample[pos[1]][pos[0]] == "#":
+            count += 1
+    return count
+
+def part1(sample):
+    """Partie 1 du défi"""
+    return slope(3, 1, sample)
+
+def part2(sample):
+    """Partie 2 du défi"""
+    sol = 1
+    sol *= slope(1, 1, sample)
+    sol *= slope(3, 1, sample)
+    sol *= slope(5, 1, sample)
+    sol *= slope(7, 1, sample)
+    sol *= slope(1, 2, sample)
+    return sol
+
+
+def main():
+    """Fonction principale"""
+    sample = read_sample()
+    print(f"part1: {part1(sample)}")
+    print(f"part2: {part2(sample)}")

2020/inputs/day03.txt

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