From 81ded71eb7ceec248fc9aa307ab56cd61cacca86 Mon Sep 17 00:00:00 2001
From: homer li <homer.lee.0508@gmail.com>
Date: Tue, 1 Dec 2020 15:55:51 -0800
Subject: [PATCH] first commit

---
 day1.js  |  31 +++++++++
 text.txt | 200 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 231 insertions(+)
 create mode 100644 day1.js
 create mode 100644 text.txt

diff --git a/day1.js b/day1.js
new file mode 100644
index 0000000..201cbf0
--- /dev/null
+++ b/day1.js
@@ -0,0 +1,31 @@
+const fs = require("fs");
+
+const info = fs
+	.readFileSync("text.txt", { encoding: "utf-8" })
+	.split("\n")
+	.filter((x) => x)
+	.map((x) => parseInt(x));
+
+const part1 = () => {
+	for (let i = 0; i < info.length; i++) {
+		for (let j = i + 1; j < info.length; j++) {
+			if (info[i] + info[j] == 2020) {
+				console.log(info[i] * info[j]);
+			}
+		}
+	}
+};
+
+const part2 = () => {
+	for (let i = 0; i < info.length; i++) {
+		for (let j = i + 1; j < info.length; j++) {
+			for (let k = j + 1; k < info.length; k++) {
+				if (info[i] + info[j] + info[k] == 2020) {
+					console.log(info[i] * info[j] * info[k]);
+				}
+			}
+		}
+	}
+};
+
+part2();
diff --git a/text.txt b/text.txt
new file mode 100644
index 0000000..e441d8d
--- /dev/null
+++ b/text.txt
@@ -0,0 +1,200 @@
+1227
+1065
+329
+1063
+1889
+1700
+1805
+1373
+389
+1263
+1276
+1136
+1652
+1981
+1406
+1249
+1197
+1379
+1050
+1791
+1703
+2001
+1842
+1707
+1486
+1204
+1821
+1807
+1712
+1871
+1599
+1390
+1219
+1612
+1980
+1857
+1511
+1702
+1455
+1303
+1052
+1754
+1545
+1488
+1848
+1236
+1549
+1887
+1970
+1123
+1686
+1404
+1688
+1106
+1296
+401
+1829
+1693
+1389
+1957
+914
+1176
+1348
+1275
+1624
+1401
+1045
+1396
+1352
+1569
+1060
+1235
+1679
+1503
+1340
+1872
+1410
+1077
+958
+1681
+1189
+1466
+1087
+1852
+1293
+1139
+1300
+1323
+661
+1388
+1983
+1325
+1112
+1774
+1858
+1785
+1616
+1255
+1198
+1354
+1124
+1834
+1417
+1918
+1496
+33
+1150
+1861
+1172
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+1558
+1919
+1620
+1613
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+1592
+1709
+1909
+1670
+1922
+1840
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+1193
+1736
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+1770
+1191
+1433
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+1148
+1225
+1147
+1171
+1424
+1913
+1228
+1339
+1814
+1504
+1251
+1240
+1272
+1500
+1927
+1428
+1641
+1453
+1729
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+1808
+1180
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+1108
+1085
+1669
+1636
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+1520
+1929
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+1256
+1524
+1571
+1506
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+1408
+1540
+1934
+1810
+1328
+1910
+1478
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+1798
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+1220
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+1675
+1912
+1668
+1932
+1962
+1055
+1757
+1116
+1090
\ No newline at end of file