day05

day05/.gitignore

@@ -0,0 +1,5 @@
+.idea
+target
+debug
+Cargo.lock
+**/*.rs.bk

day05/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "day05"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+itertools = "0.12.0"

day05/example_input.txt

@@ -0,0 +1,33 @@
+seeds: 79 14 55 13
+
+seed-to-soil map:
+50 98 2
+52 50 48
+
+soil-to-fertilizer map:
+0 15 37
+37 52 2
+39 0 15
+
+fertilizer-to-water map:
+49 53 8
+0 11 42
+42 0 7
+57 7 4
+
+water-to-light map:
+88 18 7
+18 25 70
+
+light-to-temperature map:
+45 77 23
+81 45 19
+68 64 13
+
+temperature-to-humidity map:
+0 69 1
+1 0 69
+
+humidity-to-location map:
+60 56 37
+56 93 4

day05/input.txt

@@ -0,0 +1,219 @@
+seeds: 4106085912 135215567 529248892 159537194 1281459911 114322341 1857095529 814584370 2999858074 50388481 3362084117 37744902 3471634344 240133599 3737494864 346615684 1585884643 142273098 917169654 286257440
+
+seed-to-soil map:
+1640984363 3136305987 77225710
+3469528922 1857474741 56096642
+278465165 2901870617 105516220
+1442950910 1913571383 198033453
+463085535 1458252975 13696838
+1718210073 1686050230 171424511
+383981385 3064707638 71598349
+1267048154 3759577328 175902756
+3262934306 1479455614 206594616
+2493001016 200414015 157177749
+3885112776 411057950 157348766
+4042461542 1181162257 199039568
+476782373 2111604836 790265781
+455579734 1471949813 7505801
+1889634584 3213531697 546045631
+4241501110 357591764 53466186
+3525625564 3935480084 359487212
+2650178765 568406716 612755541
+200414015 1380201825 78051150
+2435680215 3007386837 57320801
+
+soil-to-fertilizer map:
+513693437 1166448955 406316429
+3977989337 1831898517 148449061
+2857616419 1749713256 55966993
+2245899978 767737007 398711948
+3462028551 3402487827 258322330
+1207747701 2246116788 274586148
+1857449833 2520702936 106524473
+950443356 290304833 224196260
+2913583412 1805680249 26218268
+290304833 3849361293 119346889
+3720350881 3244527156 157960671
+920009866 1634093064 30433490
+409651722 2627227409 104041715
+3916661657 1572765384 61327680
+1624788708 2115889182 130227606
+1963974306 3695907849 9066861
+1755016314 1980347578 102433519
+1973041167 3151152620 93374536
+1482333849 710468850 57268157
+2644611926 2899798022 213004493
+1539602006 1664526554 85186702
+2210802286 3660810157 35097692
+3135769437 3968708182 326259114
+1174639616 2082781097 33108085
+3878311552 3112802515 38350105
+2066415703 3704974710 144386583
+2939801680 514501093 195967757
+4126438398 2731269124 168528898
+
+fertilizer-to-water map:
+1274667249 2789153677 35498097
+1119124697 1423189114 4201717
+1775973674 127038866 409949870
+2636872711 677641697 238584014
+998550357 2708616519 80537158
+1613168083 3037802277 162805591
+1123326414 2618446916 90169603
+2516959328 2034731526 119913383
+3879305887 3993605604 147788774
+1213496017 2616229293 2217623
+3412445194 3202949622 62545934
+2875456725 2194682091 362593593
+1079087515 2154644909 40037182
+2468026227 3426058027 48933101
+0 1427390831 607340695
+2185923544 0 127038866
+1310165346 916225711 76820908
+2312962410 993046619 155063817
+607340695 1369464790 53724324
+1389328008 536988736 140652961
+1386986254 3200607868 2341754
+4241108893 3701026057 53858403
+661065019 2824651774 213150503
+1529980969 3342870913 83187114
+921175000 3265495556 77375357
+874215522 1148110436 46959478
+4180667579 3914761609 60441314
+3238050318 1195069914 174394876
+3701026057 3754884460 159877149
+4027094661 4141394378 153572918
+3860903206 3975202923 18402681
+1215713640 2557275684 58953609
+
+water-to-light map:
+3346671099 2139469351 253535694
+3600206793 4187771498 107195798
+1271601308 936374322 163567625
+3890528820 1799438963 144160054
+1731948725 3256631615 148580525
+3859991790 2573461247 250171
+389304550 1099941947 124474859
+2322259245 1445947039 39679535
+1544278612 1943599017 46211136
+1124738947 789511961 146862361
+3860946526 2109887057 29582294
+891137223 173339870 233601724
+3044858977 1485626574 301812122
+627354019 0 173339870
+800693889 1224416806 90443334
+4046689141 2034661517 75225540
+4166766045 4059570247 128201251
+0 1314860140 120308793
+4034688874 1787438696 12000267
+2294392242 2393005045 27867003
+2361938780 2573711418 682920197
+4121914681 1989810153 44851364
+1674653431 3705039670 14123300
+1445242474 3719162970 99036138
+513779409 406941594 113574610
+3707402591 2420872048 152589199
+2053021103 3818199108 241371139
+3860241961 1445242474 704565
+1880529250 3489375823 172491853
+1688776731 3661867676 43171994
+120308793 520516204 268995757
+1590489748 3405212140 84163683
+
+light-to-temperature map:
+1711282888 1572780528 87721767
+154126417 0 43277112
+950353983 1343526858 179094373
+2607445049 2714989532 110883165
+197403529 400138402 104876963
+302280492 43277112 202734873
+2990325458 1942480091 22763517
+2203652414 1550069916 22710612
+3347561974 4075093920 130901113
+1328424170 3514387681 17133869
+3187047160 4220120429 74846867
+3555672228 4205995033 676520
+555737175 2292503071 178861674
+936905107 4206671553 13448876
+2718328214 2825872697 25755942
+2042629442 945726244 118907923
+2161537365 3027858084 42115049
+1657501024 1888698227 53781864
+2943656210 3804007444 46669248
+2226363026 2004226072 108596129
+0 246011985 154126417
+734598849 2928837780 99020304
+833619153 1660502295 103285954
+2744084156 3436875901 77511780
+1299692440 2112822201 28731730
+2821595936 782812975 122060274
+1799004655 2471364745 95185072
+3082783503 1965243608 38982464
+2334959155 3531521550 272485894
+3121765967 2227221878 65281193
+1392230801 3850676692 224417228
+3013088975 528288490 69694528
+1616648029 904873249 40852995
+1345558039 3069973133 46672762
+3681258726 1064634167 278892691
+1894189727 2566549817 148439715
+1129448356 597983018 170244084
+3261894027 2141553931 85667947
+3478463087 2851628639 77209141
+3556348748 1763788249 124909978
+4280381423 768227102 14585873
+528288490 1522621231 27448685
+3960151417 3116645895 320230006
+
+temperature-to-humidity map:
+2401309547 2063893326 5931150
+4081820678 1536756293 195703517
+3389837279 4114880485 97950323
+67647704 537880870 95615044
+3487787602 2069824476 16209316
+212366581 0 210367924
+0 470233166 67647704
+163262748 331958016 49103833
+3921228390 3754997923 26024946
+1883070873 986328296 29590327
+1844673227 4256569650 38397646
+422734505 381061849 89171317
+3835004067 4212830808 43738842
+1753523088 1732459810 63479835
+4277524195 3781022869 17443101
+926010074 3798465970 316414515
+511905822 210367924 31838014
+3565158997 3485152853 269845070
+3878742909 776643827 42485481
+3352296690 1795939645 37540589
+2877358153 2512426556 474938537
+1419995251 1068661114 304321846
+1348461498 705110074 71533753
+1724317097 1372982960 29205991
+1974916783 2086033792 426392764
+2407240697 3015035397 470117456
+1242424589 880291387 106036909
+642854491 1833480234 230413092
+3503996918 819129308 61162079
+543743836 242205938 89752078
+873267583 1015918623 52742491
+1817002923 2987365093 27670304
+1912661200 642854491 62255583
+3947253336 1402188951 134567342
+
+humidity-to-location map:
+2955816171 2260659770 927037009
+1906648752 2188942242 71717528
+848878920 35928575 8026852
+4100692468 1994667414 194274828
+2066384942 3405536067 889431229
+559945395 1052613350 288933525
+3882853180 3187696779 217839288
+856905772 1341546875 164300625
+0 528596530 524016820
+1978366280 1723924810 88018662
+1044385850 67134880 400987760
+524016820 0 35928575
+1021206397 43955427 23179453
+1445373610 468122640 60473890
+1723924810 1811943472 182723942

day05/src/main.rs

@@ -0,0 +1,134 @@
+use std::cmp::Ordering;
+use std::fs::File;
+use std::io;
+use std::io::{BufRead, BufReader, Lines};
+
+fn main() -> io::Result<()> {
+    let file = File::open("input.txt")?;
+    let reader = BufReader::new(file);
+
+    let splitted_parts = split_at_empty_lines(reader.lines());
+    let mut parts = splitted_parts.iter();
+    let seeds = parse_seeds(parts.next().unwrap());
+    let seed_to_soil = parse_next(parts.next().unwrap());
+    let soil_to_fertilizer = parse_next(parts.next().unwrap());
+    let fertilizer_to_water = parse_next(parts.next().unwrap());
+    let water_to_light = parse_next(parts.next().unwrap());
+    let light_to_temperature = parse_next(parts.next().unwrap());
+    let temperature_to_humidity = parse_next(parts.next().unwrap());
+    let humidity_to_location = parse_next(parts.next().unwrap());
+
+    let result = seeds.iter()
+        .map(|seed| calculate(&seed_to_soil, *seed))
+        .map(|soil| calculate(&soil_to_fertilizer, soil))
+        .map(|fertilizer| calculate(&fertilizer_to_water, fertilizer))
+        .map(|water| calculate(&water_to_light, water))
+        .map(|light| calculate(&light_to_temperature, light))
+        .map(|temperature| calculate(&temperature_to_humidity, temperature))
+        .map(|humidity| calculate(&humidity_to_location, humidity))
+        .min_by(|a, b| a.partial_cmp(b).unwrap_or(Ordering::Equal))
+        .unwrap();
+
+
+    println!("First: {}", result);
+
+    let mut result = u64::MAX;
+    for i in 0..seeds.len() - 1 {
+        if i % 2 == 0 {
+            println!("{}", i);
+            let start = seeds[i];
+            let length = seeds[i + 1];
+            println!("From {} to {}", start, start + length - 1);
+            for value in start..start + length - 1 {
+                if value % 1000000 == 0 {
+                    print!("{}..", value);
+                }
+                let calculation = calculate_all(vec![
+                    &seed_to_soil,
+                    &soil_to_fertilizer,
+                    &fertilizer_to_water,
+                    &water_to_light,
+                    &light_to_temperature,
+                    &temperature_to_humidity,
+                    &humidity_to_location,
+                ], value);
+                if calculation < result {
+                    result = calculation;
+                }
+            }
+        }
+    }
+
+    println!("Second: {}", result);
+
+    Ok(())
+}
+
+fn parse_seeds(line: &Vec<String>) -> Vec<u64> {
+    line[0].split_whitespace().skip(1).map(|value| value.parse::<u64>().unwrap()).collect()
+}
+
+fn split_at_empty_lines(lines: Lines<BufReader<File>>) -> Vec<Vec<String>> {
+    let mut result = Vec::new();
+    let mut current = Vec::new();
+    for line in lines {
+        let unwrapped = line.unwrap();
+        if unwrapped.is_empty() {
+            result.push(current);
+            current = Vec::new();
+        } else {
+            current.push(unwrapped)
+        }
+    }
+    result.push(current);
+    result
+}
+
+fn parse_next(lines: &Vec<String>) -> Vec<Mapping> {
+    let mappings: Vec<String> = lines.iter().skip(1).map(|line| line.clone()).collect();
+
+    let parsed_mappings: Vec<Mapping> = mappings.iter()
+        .map(|mapping| {
+            let mut splitted = mapping.split_whitespace();
+            let destination_start = splitted.next().unwrap().parse::<u64>().unwrap();
+            let source_start = splitted.next().unwrap().parse::<u64>().unwrap();
+            let length = splitted.next().unwrap().parse::<u64>().unwrap();
+
+            Mapping {
+                destination_start,
+                source_start,
+                length,
+            }
+        })
+        .collect();
+
+
+    parsed_mappings
+}
+
+fn calculate_all(mappings_list: Vec<&Vec<Mapping>>, input: u64) -> u64 {
+    mappings_list.iter().fold(input, |current, mapping| calculate(mapping, current))
+}
+
+fn calculate(mappings: &Vec<Mapping>, input: u64) -> u64 {
+    for mapping in mappings {
+        if input >= mapping.source_start && input < mapping.source_start + mapping.length {
+            let diff = input - mapping.source_start;
+            return mapping.destination_start + diff;
+        }
+    }
+    input
+}
+
+struct Mapping {
+    destination_start: u64,
+    source_start: u64,
+    length: u64,
+}
+
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn check_find_numbers() {}
+}