2023 day 6 part 1 solved

2023/6.py

@@ -0,0 +1,24 @@
+from math import pow, ceil, floor
+
+lines = [l.split() for l in open("input.txt", 'r').read().splitlines()]
+races = [(int(lines[0][i]), int(lines[1][i])) for i in range(1,len(lines[0]))]
+#[(time, record)]
+
+#d = t * v
+#charge + t = time
+#t = time - charge
+#v = charge
+#d = (time - charge) * charge
+#d = -charge^2 + time*charge
+
+summa = 1
+
+for race in races:
+    a = -1
+    b = race[0]
+    c = -race[1]
+    rangeStart = floor((-b + pow((pow(b,2)-(4*a*c)),0.5)) / (2*a)) + 1
+    rangeEnd = ceil((-b - pow((pow(b,2)-(4*a*c)),0.5)) / (2*a)) - 1
+    summa *= (rangeEnd-rangeStart+1)
+
+print(summa)