Add 2020 - Day 1 - Part 1

.idea/runConfigurations/2020___Day_01.xml

@@ -0,0 +1,18 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="2020 - Day 01" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
+    <option name="command" value="run --bin 01" />
+    <option name="workingDirectory" value="file://$PROJECT_DIR$/2020/01" />
+    <option name="channel" value="DEFAULT" />
+    <option name="requiredFeatures" value="true" />
+    <option name="allFeatures" value="false" />
+    <option name="emulateTerminal" value="false" />
+    <option name="withSudo" value="false" />
+    <option name="backtrace" value="SHORT" />
+    <envs />
+    <option name="isRedirectInput" value="false" />
+    <option name="redirectInputPath" value="" />
+    <method v="2">
+      <option name="CARGO.BUILD_TASK_PROVIDER" enabled="true" />
+    </method>
+  </configuration>
+</component>

2020/.gitignore

@@ -0,0 +1 @@
+/target/

2020/01/input/1.txt

@@ -0,0 +1,200 @@
+1941
+1887
+1851
+1874
+1612
+1960
+1971
+1983
+1406
+1966
+1554
+1892
+1898
+1926
+1081
+1992
+1073
+1603
+177
+1747
+1063
+1969
+1659
+1303
+1759
+1853
+1107
+1818
+1672
+1352
+2002
+1838
+1985
+1860
+1141
+1903
+1334
+1489
+1178
+1823
+1499
+1951
+1225
+1503
+1417
+1724
+1165
+1339
+1816
+1504
+1588
+1997
+1946
+1324
+1771
+1982
+1272
+1367
+1439
+1252
+1902
+1940
+1333
+1750
+1512
+1538
+1168
+2001
+1797
+1233
+972
+1306
+1835
+1825
+1822
+1880
+1732
+1785
+1727
+1275
+1355
+1793
+1485
+1297
+1932
+1519
+1587
+1382
+1914
+1745
+1087
+1996
+1746
+1962
+1573
+2008
+1868
+1278
+1386
+1238
+1242
+1170
+1476
+1161
+1754
+1807
+1514
+1189
+1916
+1884
+1535
+1217
+1911
+1861
+1493
+1409
+1783
+1222
+1955
+1673
+1502
+607
+2010
+1846
+1819
+1500
+1799
+1475
+1146
+1608
+1806
+1660
+1618
+1904
+978
+1762
+1925
+1185
+1154
+1239
+1843
+1986
+533
+1509
+1913
+287
+1707
+1115
+1699
+1859
+1077
+1915
+1412
+1360
+1646
+1973
+1627
+1755
+1748
+1769
+1886
+1422
+1686
+950
+100
+1372
+1068
+1370
+1428
+1870
+1108
+190
+1891
+1794
+1228
+1128
+1365
+1740
+1888
+1460
+1758
+1906
+1917
+1989
+1251
+1866
+1560
+1921
+1777
+1102
+1850
+1498
+683
+1840
+1800
+1112
+1908
+1442
+1082
+1071

2020/01/main.rs

@@ -0,0 +1,23 @@
+use std::error::Error;
+
+#[path = "../utils/mod.rs"]
+mod utils;
+
+fn main() -> Result<(), Box<dyn Error>> {
+	let lines = utils::parse_input_lines::<u32>()?;
+	
+	'outer: for i in 0..lines.len() {
+		let value1 = lines.get(i).unwrap();
+		
+		for j in (i + 1)..lines.len() {
+			let value2 = lines.get(j).unwrap();
+			
+			if value1 + value2 == 2020 {
+				println!("Result: {} x {} = {}", value1, value2, value1 * value2);
+				break 'outer
+			}
+		}
+	}
+	
+	Ok(())
+}

2020/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "chylex-aoc-2020"
+version = "0.1.0"

2020/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "chylex-aoc-2020"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "01"
+path = "01/main.rs"

2020/utils/mod.rs

@@ -0,0 +1,14 @@
+use std::error::Error;
+use std::fs::File;
+use std::io;
+use std::io::{BufRead, BufReader};
+use std::str::FromStr;
+
+pub fn read_input_lines() -> Result<Vec<String>, io::Error> {
+	let file = File::open("input/1.txt")?;
+	return BufReader::new(file).lines().collect();
+}
+
+pub fn parse_input_lines<T : FromStr>() -> Result<Vec<T>, Box<dyn Error>> where <T as FromStr>::Err : Into<Box<dyn Error>> {
+	return read_input_lines()?.iter().map(|line| line.parse::<T>()).collect::<Result<Vec<T>, T::Err>>().map_err(Into::into);
+}

README.md

@@ -6,15 +6,21 @@ I have included Run Configurations for JetBrains IDEs, so if you use the appropr
 
 # Languages
 
-## Kotlin
+## \[2021\] Kotlin
 
 The repository contains a Gradle project (`build.gradle.kts`) that sets up every day as a module. You should be able to load the Gradle project into [IntelliJ IDEA](https://www.jetbrains.com/idea/).
 
 The source code is in `main.kt`. The run configuration executes the `main()` method in this file.
 
-## NASM x64 Assembly
+## \[2020\] Rust
 
-The repository contains a CMake project (`CMakeLists.txt`) in the respective year's folder, which sets up every day as a CMake subproject. You should be able to load the CMake project into [CLion](https://www.jetbrains.com/clion/), as long as you have a toolchain named `Visual Studio x64` set to use the `amd64` architecture.
+The repository contains a Cargo project (`2020/Cargo.toml`) that sets up every day as a binary target that can be launched with `cargo run --bin <day>`, for ex. `cargo run --bin 01`. You should be able to load the Cargo project into [CLion](https://www.jetbrains.com/clion/).
+
+The source code is in `main.rs`. The run configuration executes the `main()` function in this file.
+
+## \[2015\] NASM x64 Assembly
+
+The repository contains a CMake project (`2015/CMakeLists.txt`) in the respective year's folder, which sets up every day as a CMake subproject. You should be able to load the CMake project into [CLion](https://www.jetbrains.com/clion/), as long as you have a toolchain named `Visual Studio x64` set to use the `amd64` architecture.
 
 The source code is in `main.c`, which is either in the puzzle's own folder, or in `utils` if no adjustments are needed. By default, `main.c` reads the whole input file into a buffer, and passes it as a parameter to the `entryPoint` function defined in `main.asm` which implements the logic and output of each puzzle.
 
@@ -31,6 +37,7 @@ The versions should not matter, but I used Visual Studio 2019 with `MSVC v142 (1
 |-----:|----:|----------|
 | 2015 |  01 | NASM x64 |
 | 2015 |  02 | NASM x64 |
+| 2020 |  01 | Rust     |
 | 2021 |  01 | Kotlin   |
 | 2021 |  02 | Kotlin   |
 | 2021 |  03 | Kotlin   |

build.gradle.kts

@@ -18,8 +18,9 @@ idea {
 	module.excludeDirs.addAll(listOf(
 		file(".gradle"),
 		file("build"),
-		file("cmake-build-debug"),
-		file("gradle")
+		file("gradle"),
+		file("2015"),
+		file("2020")
 	))
 }