Day 1 part 1&2

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+### A Pluto.jl notebook ###
+# v0.12.15
+
+using Markdown
+using InteractiveUtils
+
+# ╔═╡ f0dd4400-3313-11eb-3295-af913c2212fb
+md"# Advent Of Code 2020"
+
+# ╔═╡ 0b7b8920-3314-11eb-2cfb-7d20c0967e67
+md"## Day 1"
+
+# ╔═╡ 877b32e0-3315-11eb-0e96-650b19da693e
+begin
+       input_day1_raw = "1254
+       1313
+       1456
+       1782
+       1742
+       1391
+       1273
+       1286
+       1373
+       1891
+       1188
+       1994
+       1887
+       1816
+       1984
+       961
+       1428
+       1105
+       1123
+       1699
+       1154
+       1953
+       1977
+       1450
+       1696
+       1068
+       1241
+       1926
+       1228
+       1591
+       1789
+       1966
+       1508
+       1193
+       1190
+       1654
+       444
+       1282
+       1169
+       1165
+       1778
+       1669
+       1570
+       1671
+       1845
+       1208
+       1728
+       1798
+       847
+       1300
+       1817
+       1200
+       1297
+       1658
+       1296
+       1571
+       1991
+       1305
+       1314
+       1903
+       1472
+       1359
+       1506
+       1999
+       1877
+       1168
+       1137
+       1288
+       1083
+       1656
+       413
+       1430
+       1408
+       1397
+       1846
+       1218
+       684
+       1234
+       2007
+       900
+       1604
+       1460
+       1848
+       1693
+       1324
+       1401
+       1968
+       1918
+       1975
+       1665
+       1413
+       1874
+       1852
+       1521
+       1753
+       1229
+       1940
+       1650
+       1976
+       1235
+       1130
+       1927
+       1365
+       1908
+       1441
+       1302
+       1986
+       1449
+       1692
+       1944
+       1277
+       1312
+       1826
+       1231
+       1289
+       1814
+       1170
+       1606
+       1608
+       1773
+       1883
+       1936
+       1626
+       1497
+       1860
+       1673
+       1295
+       2005
+       1481
+       1995
+       1734
+       1646
+       1557
+       1298
+       1174
+       1894
+       1309
+       1240
+       1982
+       1414
+       1799
+       1620
+       1863
+       1220
+       1642
+       508
+       1146
+       1187
+       1253
+       1284
+       1952
+       1527
+       1610
+       1333
+       1221
+       1362
+       1457
+       1721
+       1493
+       1330
+       156
+       1647
+       1841
+       1724
+       2000
+       1398
+       1745
+       1985
+       1269
+       1722
+       2001
+       1923
+       1395
+       1094
+       1140
+       1958
+       1239
+       1336
+       1588
+       1338
+       1750
+       1757
+       1444
+       1822
+       1335
+       1941
+       1865
+       1767
+       1881
+       1499
+       1157
+       1990
+       1210
+       1779
+       1201
+       1784
+       1961
+       1476
+       1861
+       1468"
+       input_day1 = parse.(Int64, split(input_day1_raw)) |> sort
+end
+
+# ╔═╡ 4adcf8d0-33a8-11eb-0220-696f06894ef3
+function day1_part1(input)
+       for n ∈ input         
+               r = searchsorted(input_day1, 2020 - n)
+               if r.start ≤ r.stop
+                       return n * input[r.start]
+               end
+       end
+end
+
+# ╔═╡ 1e8e7230-33ae-11eb-0a77-035e6a4b9ba8
+function day1_part2(input)
+       l = length(input)
+       for i ∈ 1:l           
+               for j ∈ i+1:l
+                       v = 2020 - input[i] - input[j]
+                       if v ≤ 0
+                               break
+                       end
+                       r = searchsorted(input_day1, v)
+                       if r.start ≤ r.stop           
+                               return input[i] * input[j] * input[r.start]
+                       end
+               end
+       end
+end
+
+# ╔═╡ 7a037310-33ac-11eb-34fb-9bf552883937
+md"**Result for part 1:** $(day1_part1(input_day1))"
+
+# ╔═╡ c7dcdae0-33b1-11eb-2cab-fbc06c8ef76b
+md"**Result for part 2:** $(day1_part2(input_day1))"
+
+# ╔═╡ Cell order:
+# ╟─f0dd4400-3313-11eb-3295-af913c2212fb
+# ╟─0b7b8920-3314-11eb-2cfb-7d20c0967e67
+# ╟─877b32e0-3315-11eb-0e96-650b19da693e
+# ╠═4adcf8d0-33a8-11eb-0220-696f06894ef3
+# ╠═1e8e7230-33ae-11eb-0a77-035e6a4b9ba8
+# ╟─7a037310-33ac-11eb-34fb-9bf552883937
+# ╟─c7dcdae0-33b1-11eb-2cab-fbc06c8ef76b