Added 2021 (python)

2023-08-02 11:46:44 +02:00
parent 410815acf8
commit 11600f7ba9
82 changed files with 8693 additions and 0 deletions
--- a/2021/05/input
+++ b/2021/05/input
@ -0,0 +1,500 @@
+609,916 -> 60,367
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--- a/2021/05/prog.py
+++ b/2021/05/prog.py
@ -0,0 +1,73 @@
+VERBOSE = True
+def verbose(s = "", **kwargs):
+    if VERBOSE:
+        print(s, **kwargs)
+
+def get_c(s: str):
+    c0 = s.split(',')
+    return [int(c0[0]), int(c0[1])]
+
+def get_input(sample = False, part = 1):
+    with open(f'sample_p{part}' if sample else 'input', 'r') as f:
+        tmp = f.readlines()
+        ret = {"coords": [], "map_dim": [0, 0]}
+        for line in tmp:
+            coords = line.split(' -> ')
+            c0 = get_c(coords[0])
+            c1 = get_c(coords[1])
+            ret["coords"].append([c0, c1])
+            ret["map_dim"][0] = c0[0] + 1 if c0[0] + 1 > ret["map_dim"][0] else ret["map_dim"][0]
+            ret["map_dim"][1] = c0[1] + 1 if c0[1] + 1 > ret["map_dim"][1] else ret["map_dim"][1]
+            ret["map_dim"][0] = c1[0] + 1 if c1[0] + 1 > ret["map_dim"][0] else ret["map_dim"][0]
+            ret["map_dim"][1] = c1[1] + 1 if c1[1] + 1 > ret["map_dim"][1] else ret["map_dim"][1]
+
+        return ret
+
+
+def result(inp, part = 1):
+    m = [[0 for _ in range(inp["map_dim"][0])] for _ in range(inp["map_dim"][1])]
+    for c_pair in inp["coords"]:
+        x1, y1 = c_pair[0]
+        x2, y2 = c_pair[1]
+        if x1 == x2 or y1 == y2 or (part == 2 and abs(x2 - x1) == abs(y2 - y1)):
+            if x1 == x2:
+                for y in range(min(y1, y2), max(y1, y2) + 1):
+                    m[y][x1] += 1
+            elif y1 == y2:
+                for x in range(min(x1, x2), max(x1, x2) + 1):
+                    m[y1][x] += 1
+            elif abs(y1 - y2) == abs(x1 - x2):
+                d = (
+                    1 if x1 < x2 else -1, 
+                    1 if y1 < y2 else -1
+                )
+                verbose(f"going through {x1, y1 = }, {x2, y2 = } with {d = }")
+                x = x1
+                y = y1
+                m[y][x] += 1
+                for _ in range(abs(y2 - y1)):
+                    x = x + d[0]
+                    y = y + d[1]
+                    verbose(f"{x, y = }")
+                    m[y][x] += 1
+            
+
+
+    res = 0;
+    for row in m:
+        for cell in row:
+            if cell == 0:
+                verbose('.', end='')
+            else:
+                verbose(cell, end='')
+            res += 1 if cell >= 2 else 0
+
+        verbose()
+    verbose()
+
+    return res
+
+
+if __name__ == "__main__":
+    VERBOSE = False
+    print(result(get_input(), part = 2))
--- a/2021/05/sample_p1
+++ b/2021/05/sample_p1
@ -0,0 +1,10 @@
+0,9 -> 5,9
+8,0 -> 0,8
+9,4 -> 3,4
+2,2 -> 2,1
+7,0 -> 7,4
+6,4 -> 2,0
+0,9 -> 2,9
+3,4 -> 1,4
+0,0 -> 8,8
+5,5 -> 8,2
--- a/2021/05/test.py
+++ b/2021/05/test.py
@ -0,0 +1,9 @@
+from prog import *
+import unittest
+
+class Tests(unittest.TestCase):
+    def test_part1(self):
+        self.assertEqual(result(get_input(sample = True)), 5)
+
+    def test_part2(self):
+        self.assertEqual(result(get_input(sample = True), part = 2), 12)