Completed day 1 of 2020 aoc

advent_of_code/2020/1/Cargo.toml

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+[package]
+name = "main"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

advent_of_code/2020/1/input.txt

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+1645
+1995
+1658
+1062
+1472
+1710
+1424
+1823
+1518
+1656
+1811
+1511
+1320
+1521
+1395
+1996
+1724
+1666
+1637
+1504
+1766
+534
+1738
+1791
+1372
+1225
+1690
+1949
+1495
+1436
+1166
+1686
+1861
+1889
+1887
+997
+1202
+1478
+833
+1497
+1459
+1717
+1272
+1047
+1751
+1549
+1204
+1230
+1260
+1611
+1506
+1648
+1354
+1415
+1615
+1327
+1622
+1592
+1807
+1601
+1026
+1757
+1376
+1707
+1514
+1905
+1660
+1578
+1963
+1292
+390
+1898
+1019
+1580
+1499
+1830
+1801
+1881
+1764
+1442
+1838
+1088
+1087
+1040
+1349
+1644
+1908
+1697
+1115
+1178
+1224
+1810
+1445
+1594
+1894
+1287
+1676
+1435
+1294
+1796
+1350
+1685
+1118
+1488
+1726
+1696
+1190
+1538
+1780
+1806
+1207
+1346
+1705
+983
+1249
+1455
+2002
+1466
+1723
+1227
+1390
+1281
+1715
+1603
+1862
+1744
+1774
+1385
+1312
+1654
+1872
+1142
+1273
+1508
+1639
+1827
+1461
+1795
+1533
+1304
+1417
+1984
+28
+1693
+1951
+1391
+1931
+1179
+1278
+1400
+1361
+1369
+1343
+1416
+1426
+314
+1510
+1933
+1239
+1218
+1918
+1797
+1255
+1399
+1229
+723
+1992
+1595
+1191
+1916
+1525
+1605
+1524
+1869
+1652
+1874
+1756
+1246
+1310
+1219
+1482
+1429
+1244
+1554
+1575
+1123
+1194
+1408
+1917
+1613
+1773
+1809
+1987
+1733
+1844
+1423
+1718
+1714
+1923
+1503

advent_of_code/2020/1/src/main.rs

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+fn solve_1(input: &str) -> u32 {
+    let numbers: Vec<u32> = input
+        .lines()
+        .map(|number| number.parse::<u32>().unwrap())
+        .collect();
+
+    for n in numbers.iter() {
+        for m in numbers.iter() {
+            if n + m == 2020 {
+                return n * m;
+            }
+        }
+    }
+
+    return 0;
+}
+
+fn solve_2(input: &str) -> u32 {
+    let numbers: Vec<u32> = input
+        .lines()
+        .map(|number| number.parse::<u32>().unwrap())
+        .collect();
+
+    for n in numbers.iter() {
+        for m in numbers.iter() {
+            if n + m > 2020 {
+                continue;
+            }
+            for v in numbers.iter() {
+                if n + m + v == 2020 {
+                    return n * m * v;
+                }
+            }
+        }
+    }
+
+    return 0;
+}
+
+fn main() {
+    println!("Hello, this is Patrick!");
+
+    let input = include_str!("../input.txt");
+
+    let result_1 = solve_1(input);
+    println!("The magic number is {}", result_1);
+
+    let result_2 = solve_2(input);
+    println!("The bigger magic number is {}", result_2);
+}
+
+#[cfg(test)]
+
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_1() {
+        let test_input = include_str!("../test.txt");
+        assert_eq!(solve_1(test_input), 514579);
+    }
+
+    #[test]
+    fn test_2() {
+        let test_input = include_str!("../test.txt");
+        assert_eq!(solve_2(test_input), 241861950);
+    }
+}

advent_of_code/2020/1/test.txt

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+1721
+979
+366
+299
+675
+1456