From bf16b19b1f6deffd1983efca059db576f3b60ee5 Mon Sep 17 00:00:00 2001
From: Yigit Sever
Date: Mon, 13 Dec 2021 10:40:39 +0300
Subject: 2019, tracking

---
 2019/day1/README.md   |   5 +++
 2019/day1/part1.in    | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2019/day1/part2.in    | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2019/day1/rec_fuel.py |  23 ++++++++++++
 4 files changed, 228 insertions(+)
 create mode 100644 2019/day1/README.md
 create mode 100644 2019/day1/part1.in
 create mode 100644 2019/day1/part2.in
 create mode 100644 2019/day1/rec_fuel.py

(limited to '2019/day1')

diff --git a/2019/day1/README.md b/2019/day1/README.md
new file mode 100644
index 0000000..af0b60e
--- /dev/null
+++ b/2019/day1/README.md
@@ -0,0 +1,5 @@
+I realized part 1 can be solved with a perl one liner;
+
+```bash
+perl -ne '$c += int ($_ / 3) - 2;END {print $c}' < part1.in
+```
diff --git a/2019/day1/part1.in b/2019/day1/part1.in
new file mode 100644
index 0000000..63d0a1a
--- /dev/null
+++ b/2019/day1/part1.in
@@ -0,0 +1,100 @@
+93912
+138996
+112824
+110011
+139024
+132292
+74029
+81664
+138077
+109614
+121056
+136338
+132771
+86611
+131526
+123101
+61315
+93900
+62070
+97957
+67168
+119464
+119066
+111076
+56856
+144203
+109400
+120187
+57915
+143353
+71308
+67695
+141275
+106552
+136209
+86990
+98969
+57207
+99103
+71940
+63145
+91765
+121095
+139700
+128851
+77138
+66712
+91318
+96924
+132235
+99897
+67479
+87996
+121100
+55411
+61715
+130658
+121030
+141445
+83939
+90402
+121107
+59618
+120112
+58140
+103514
+90538
+55552
+142739
+61770
+147374
+80038
+128830
+93328
+52369
+71801
+144536
+147140
+118213
+128056
+92155
+114384
+89234
+124451
+94214
+79174
+108427
+111041
+96715
+128414
+62521
+93897
+107428
+90637
+126176
+78676
+69504
+93663
+80869
+124230
diff --git a/2019/day1/part2.in b/2019/day1/part2.in
new file mode 100644
index 0000000..63d0a1a
--- /dev/null
+++ b/2019/day1/part2.in
@@ -0,0 +1,100 @@
+93912
+138996
+112824
+110011
+139024
+132292
+74029
+81664
+138077
+109614
+121056
+136338
+132771
+86611
+131526
+123101
+61315
+93900
+62070
+97957
+67168
+119464
+119066
+111076
+56856
+144203
+109400
+120187
+57915
+143353
+71308
+67695
+141275
+106552
+136209
+86990
+98969
+57207
+99103
+71940
+63145
+91765
+121095
+139700
+128851
+77138
+66712
+91318
+96924
+132235
+99897
+67479
+87996
+121100
+55411
+61715
+130658
+121030
+141445
+83939
+90402
+121107
+59618
+120112
+58140
+103514
+90538
+55552
+142739
+61770
+147374
+80038
+128830
+93328
+52369
+71801
+144536
+147140
+118213
+128056
+92155
+114384
+89234
+124451
+94214
+79174
+108427
+111041
+96715
+128414
+62521
+93897
+107428
+90637
+126176
+78676
+69504
+93663
+80869
+124230
diff --git a/2019/day1/rec_fuel.py b/2019/day1/rec_fuel.py
new file mode 100644
index 0000000..d837202
--- /dev/null
+++ b/2019/day1/rec_fuel.py
@@ -0,0 +1,23 @@
+import sys
+
+
+def recfuel(mass):
+    """Calculate the fuel required for the module
+    use the new weight of the fuel recursively
+    r(M) = r(M / 3 - 2)
+    """
+    M = mass // 3 - 2
+
+    if M < 0:
+        return 0
+    else:
+        return M + recfuel(M)
+
+
+total = 0
+
+for mass in sys.stdin:
+    ret = recfuel(int(mass))
+    total += ret
+
+print(total)
-- 
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