Day 1

2019/01a.py

+def main():
+    with open("01ain.txt", "r") as file:
+        lines = file.readlines()
+    masses = [int(x) for x in lines]
+    fuels = [(x//3) - 2 for x in masses]
+    print(fuels)
+    print(sum(fuels))
+
+if __name__ == "__main__":
+    main()

2019/01ain.txt

+118868
+88841
+133680
+148066
+70887
+93213
+124243
+92767
+71322
+86793
+53650
+102703
+146958
+53031
+148282
+124989
+74375
+122044
+122693
+74204
+74869
+81803
+124436
+68495
+74865
+70765
+81537
+61376
+145342
+137159
+115230
+119293
+147126
+130191
+131330
+122891
+135407
+116334
+130325
+138521
+71955
+53806
+122260
+102573
+70032
+75981
+111555
+135654
+50805
+122186
+138172
+96422
+124781
+55894
+54337
+149926
+63809
+146163
+55131
+55796
+92771
+80288
+111619
+134602
+82245
+72505
+117209
+92383
+149101
+135399
+112166
+134000
+88771
+63963
+103731
+74915
+146347
+125390
+126249
+131534
+142038
+55327
+58784
+85003
+65909
+89879
+128715
+138559
+146209
+145040
+116032
+130046
+131664
+125899
+141918
+88426
+50488
+67943
+79677
+94858

2019/01b.py

+def main():
+    #lines = [12, 14, 1969, 100756]
+    with open("01ain.txt", "r") as file:
+        lines = file.readlines()
+    masses = [int(x) for x in lines]
+    fuels = [(x//3) - 2 for x in masses]
+    newfuels = []
+    for fuel in fuels:
+        of = fuel
+        f = fuel
+        while f > 0:
+            af = (f//3) - 2
+            if af > 0:
+                of += af
+                f = af
+            else:
+                f = 0
+        newfuels.append(of)
+    #print(newfuels)
+    print(sum(newfuels))
+
+if __name__ == "__main__":
+    main()