Day 1

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_15" default="true" project-jdk-name="Python 3.6" project-jdk-type="Python SDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/python-aoc-2020.iml" filepath="$PROJECT_DIR$/python-aoc-2020.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

day01/input.txt

@@ -0,0 +1,200 @@
+1801
+1324
+1924
+1848
+1735
+1721
+1948
+1667
+1832
+1773
+1972
+1777
+1866
+1850
+1786
+1617
+1806
+1923
+789
+1645
+1530
+1989
+1720
+1681
+1807
+1716
+1935
+1944
+1878
+1859
+1602
+1154
+1824
+1993
+1952
+1849
+1695
+523
+1845
+1879
+1744
+1374
+1567
+1725
+1986
+2006
+1739
+1751
+1709
+1800
+2008
+1715
+1728
+1677
+1388
+1815
+1750
+1827
+1737
+1819
+1916
+1909
+1726
+1753
+1899
+1981
+1558
+1852
+1762
+551
+1881
+1891
+1957
+1976
+1383
+1847
+1968
+1736
+1828
+1851
+1975
+1794
+1785
+1837
+1979
+1798
+1789
+1534
+1877
+1724
+1843
+1812
+1743
+1951
+1900
+1887
+1766
+1991
+1839
+1700
+1858
+1864
+2004
+1870
+1985
+1919
+1466
+1754
+1964
+946
+1907
+1942
+1911
+321
+1930
+1854
+1644
+1757
+1719
+1741
+1853
+1706
+1659
+1945
+1821
+1950
+1761
+1838
+1770
+1927
+1447
+1803
+2000
+2010
+1765
+1691
+1742
+1936
+1929
+1902
+1539
+1816
+1553
+1982
+1813
+1896
+1772
+267
+1829
+1912
+1787
+1782
+1763
+1461
+1883
+1894
+2005
+1758
+1717
+1749
+1733
+1775
+1767
+1705
+1959
+1903
+1880
+2003
+1544
+1732
+1833
+1926
+1980
+1946
+1978
+1710
+1831
+1906
+1922
+1861
+1694
+1875
+307
+1920
+1934
+1966
+1804
+1799
+1548
+1871
+1769
+1997
+1639
+1830
+917
+1797
+1672
+1921
+1965
+1662

day01/part1.py

@@ -0,0 +1,18 @@
+items = [int(x.strip()) for x in open("input.txt")]
+
+lows = []
+highs = []
+
+for item in items:
+    if item < 1010:
+        lows.append(item)
+    else:
+        highs.append(item)
+
+print(lows)
+print(highs)
+
+for low in lows:
+    for high in highs:
+        if low + high == 2020:
+            print("Found {} and {}: Sum={} Product={}".format(low, high, low+high, low*high))

day01/part2.py

@@ -0,0 +1,14 @@
+import math
+from itertools import combinations
+
+items = [int(x.strip()) for x in open("input.txt")]
+
+COUNT = 3
+
+for vals in combinations(items, 3):
+    if sum(vals) == 2020:
+        print("Found {} and {} and {}: Sum={} Product={}".format(
+            *vals,
+            sum(vals),
+            math.prod(vals)
+        ))

python-aoc-2020.iml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="Python" name="Python">
+      <configuration sdkName="Python 3.6" />
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/venv" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Python 3.6 interpreter library" level="application" />
+  </component>
+</module>