From aed6777886ca340e392a039150a3465e6436e0f8 Mon Sep 17 00:00:00 2001
From: Irene Knapp <ireneista@gmail.com>
Date: Tue, 30 Nov 2021 21:36:12 -0800
Subject: 01 :)

---
 01/input         | 2156 +++++++++++++++++++++++++++++++++++++++++++++++++-----
 01/src/main.rs   |   85 ++-
 01/tests/main.rs |    4 +-
 3 files changed, 2022 insertions(+), 223 deletions(-)

(limited to '01')

diff --git a/01/input b/01/input
index 0cf9a7b..7a534d3 100644
--- a/01/input
+++ b/01/input
@@ -1,200 +1,2000 @@
-1130
-1897
-1850
+182
+188
+204
+203
+205
+206
+208
+216
+217
+218
+219
+225
+226
+207
+204
+205
+217
+255
+254
+270
+261
+262
+264
+265
+255
+257
+249
+248
+249
+250
+265
+286
+308
+309
+317
+326
+328
+316
+318
+333
+330
+293
+292
+294
+321
+313
+307
+301
+296
+291
+295
+297
+304
+314
+331
+330
+342
+325
+324
+354
+360
+368
+371
+372
+373
+374
+381
+384
+387
+389
+390
+392
+393
+382
+361
+350
+356
+357
+359
+363
+371
+391
+398
+402
+403
+397
+394
+397
+396
+398
+399
+393
+411
+417
+428
+429
+456
+446
+451
+459
+456
+460
+458
+451
+455
+452
+446
+451
+448
+444
+476
+478
+480
+503
+502
+504
+496
+511
+518
+531
+543
+544
+516
+512
+511
+514
+524
+522
+523
+535
+558
+576
+589
+584
+580
+582
+581
+580
+571
+570
+578
+616
+609
+610
+603
+604
+614
+615
+616
+614
+612
+604
+601
+606
+604
+600
+599
+600
+609
+614
+607
+631
+629
+631
+637
+653
+661
+660
+661
+705
+721
+719
+722
+707
+720
+725
+721
+729
+730
+729
+730
+718
+728
+733
+709
+712
+699
+670
+671
+670
+655
+641
+658
+661
+659
+648
+649
+644
+643
+642
+643
+636
+656
+660
+670
+677
+679
+676
+658
+659
+651
+656
+637
+632
+625
+624
+585
+590
+591
+594
+595
+596
+607
+584
+586
+587
+597
+589
+588
+589
+599
+597
+606
+592
+612
+614
+608
+602
+601
+574
+567
+557
+535
+533
+534
+535
+509
+520
+525
+539
+535
+546
+551
+566
+571
+564
+567
+556
+566
+567
+566
+579
+610
+613
+620
+621
+598
+599
+626
+633
+659
+641
+642
+643
+641
+642
+646
+661
+662
+668
+674
+676
+681
+689
+690
+689
+677
+697
+700
+712
+702
+704
+707
+708
+705
+706
+709
+704
+705
+706
+705
+698
+694
+693
+694
+692
+689
+686
+688
+694
+720
+721
+733
+732
+716
+702
+704
+710
+701
+698
+703
+704
+702
+703
+723
+713
+722
+724
+739
+740
+741
+743
+741
+727
+724
+704
+699
+715
+710
+699
+698
+691
+694
+682
+683
+684
+682
+656
+657
+662
+664
+668
+662
+665
+649
+667
+666
+667
+639
+637
+639
+620
+618
+621
+617
+604
+605
+606
+601
+603
+606
+609
+610
+611
+615
+617
+615
+621
+619
+621
+612
+602
+601
+617
+618
+631
+626
+633
+609
+607
+610
+611
+610
+615
+619
+622
+621
+622
+626
+637
+613
+603
+612
+614
+611
+607
+628
+639
+643
+644
+643
+642
+641
+642
+641
+642
+648
+649
+652
+654
+657
+659
+682
+687
+688
+689
+678
+697
+699
+703
+720
+711
+712
+714
+713
+699
+698
+707
+710
+702
+694
+684
+682
+676
+680
+679
+662
+666
+668
+681
+671
+665
+666
+662
+629
+641
+632
+633
+632
+641
+644
+641
+647
+643
+641
+642
+643
+645
+647
+646
+645
+648
+649
+648
+637
+604
+605
+600
+601
+599
+598
+597
+591
+592
+590
+591
+565
+576
+577
+578
+581
+583
+586
+587
+598
+604
+607
+604
+602
+609
+606
+609
+620
+621
+629
+622
+620
+618
+620
+632
+654
+660
+661
+658
+657
+656
+680
+682
+688
+680
+673
+663
+665
+668
+663
+669
+670
+662
+668
+665
+672
+678
+676
+679
+680
+673
+674
+677
+678
+679
+680
+681
+659
+664
+662
+657
+664
+663
+666
+696
+712
+708
+709
+710
+725
+729
+735
+731
+732
+749
+746
+726
+727
+732
+741
+734
+733
+723
+722
+720
+722
+719
+711
+695
+696
+699
+700
+701
+724
+725
+722
+723
+715
+716
+717
+714
+715
+717
+716
+715
+723
+728
+729
+733
+734
+735
+736
+748
+788
+794
+795
+793
+792
+803
+805
+804
+805
+804
+806
+805
+784
+792
+778
+777
+787
+799
+794
+808
+811
+813
+815
+812
+809
+833
+859
+863
+864
+866
+865
+863
+850
+845
+844
+854
+860
+861
+865
+869
+851
+850
+853
+874
+875
+876
+875
+876
+875
+879
+880
+888
+891
+890
+902
+904
+892
+893
+892
+900
+905
+918
+925
+924
+923
+914
+924
+925
+926
+952
+953
+951
+947
+957
+971
+968
+982
+971
+974
+975
+958
+943
+950
+934
+940
+949
+947
+941
+972
+971
+967
+969
+968
+964
+972
+966
+976
+975
+962
+959
+962
+967
+965
+966
+963
+959
+960
+959
+961
+962
+949
+950
+956
+957
+961
+953
+949
+956
+954
+955
+919
+921
+913
+925
+921
+945
+947
+948
+963
+976
+974
+980
+981
+982
+978
+982
+988
+985
+995
+994
+981
+985
+980
+984
+999
+1001
+1002
+1020
+1021
+1035
+1044
+1040
+1060
+1074
+1075
+1078
+1056
+1062
+1059
+1060
+1058
+1063
+1066
+1068
+1069
+1068
+1082
+1081
+1082
+1086
+1075
+1087
+1085
+1087
+1097
+1096
+1098
+1093
+1102
+1114
+1119
+1128
+1127
+1112
+1113
+1112
+1114
+1133
+1138
+1137
+1144
+1146
+1144
+1145
+1148
+1143
+1150
+1151
+1153
+1152
+1153
+1134
+1124
+1146
+1145
+1140
+1143
+1144
+1143
+1144
+1148
+1149
+1151
+1153
+1152
+1151
+1155
+1156
+1155
+1152
+1187
+1182
+1201
+1206
+1211
+1204
+1205
+1204
+1203
+1205
+1206
+1187
+1188
+1196
+1206
+1205
+1208
+1201
 1218
+1212
+1220
+1201
+1204
+1210
+1228
+1234
+1237
+1225
+1224
+1223
+1207
+1208
+1207
+1213
+1192
+1200
 1198
-1761
-1082
-1742
-1821
-1464
-1834
+1209
+1197
+1209
+1215
+1193
+1234
+1233
+1216
+1213
+1235
+1239
+1237
+1231
+1235
+1240
+1253
+1268
+1270
+1279
+1278
+1280
+1285
+1319
+1323
+1324
+1329
+1324
+1330
+1334
+1308
+1312
+1308
+1307
+1286
+1288
+1294
+1322
+1325
+1336
+1324
+1330
+1331
+1328
+1342
+1341
+1343
+1345
+1351
+1352
+1358
+1357
+1363
+1362
+1358
+1385
+1384
+1395
+1394
+1395
+1402
+1409
+1377
+1378
+1340
+1341
+1339
+1338
+1335
+1348
+1351
+1363
+1358
+1359
+1335
+1347
+1337
+1340
+1339
+1329
+1340
+1334
+1337
+1339
+1340
+1341
+1345
+1346
+1349
+1344
+1345
+1346
+1354
+1340
+1315
+1319
+1321
+1320
+1333
+1334
+1328
+1318
+1309
+1304
+1324
+1339
+1314
+1313
+1310
+1311
+1314
+1316
+1317
+1318
+1319
+1320
+1328
+1337
+1350
+1353
+1347
+1349
+1338
+1339
+1336
+1344
+1329
+1320
+1322
+1343
+1346
+1350
+1306
+1308
+1306
+1303
+1320
+1321
+1320
+1321
+1320
+1330
+1328
+1334
+1350
+1349
+1348
+1350
+1347
+1350
+1351
+1358
+1356
+1364
+1374
+1375
+1354
+1351
+1360
+1364
+1348
+1361
+1356
+1357
+1354
+1357
+1352
+1334
+1335
+1330
+1355
+1354
+1353
+1354
+1355
+1361
+1360
+1358
+1356
+1359
+1371
+1372
+1378
+1377
+1376
+1355
+1357
+1355
+1356
+1357
+1364
+1378
+1379
+1380
+1374
+1381
+1389
+1396
+1402
+1403
+1384
+1386
+1387
+1409
 1413
-1917
-1746
-1954
-1942
+1419
+1420
+1421
+1427
+1453
+1456
+1453
+1425
+1427
+1428
+1424
+1420
+1417
+1421
+1412
+1413
+1415
+1414
+1411
+1412
+1413
+1425
+1426
+1440
+1470
+1461
+1466
+1457
+1460
+1494
+1481
+1483
+1482
+1481
+1482
+1481
+1483
+1499
+1485
+1486
+1487
+1488
+1489
+1468
+1472
+1469
+1470
+1479
+1478
+1479
+1485
+1461
+1460
+1456
+1455
+1456
+1455
+1449
+1446
+1448
+1451
+1452
+1439
+1440
+1442
+1448
+1445
+1432
+1433
+1434
+1415
+1420
+1412
+1413
+1419
+1420
+1405
+1401
+1403
+1377
+1380
+1382
+1383
+1379
+1381
+1403
+1405
+1428
+1429
+1431
+1424
+1415
+1420
+1424
+1429
+1439
+1440
+1438
+1440
+1448
+1442
+1441
+1439
+1441
+1442
+1444
+1449
+1450
+1449
+1446
+1477
+1466
+1467
+1496
+1503
+1529
+1538
+1539
+1528
+1558
 1560
-1227
-1852
-1976
-1773
-1404
-1824
-1011
-1532
-1306
-1819
-1739
-1540
-1973
-1436
-1196
-1176
-1856
-1332
-1617
-1895
+1561
+1573
+1587
+1569
+1566
+1572
+1577
+1585
+1602
+1603
+1606
+1581
+1598
+1599
+1593
+1598
+1595
+1604
+1607
+1606
+1607
+1605
+1614
+1629
+1636
+1638
+1656
+1664
+1668
+1671
+1687
+1683
+1700
+1703
+1706
+1720
+1719
+1718
+1720
+1701
+1700
+1701
+1702
+1704
+1707
+1700
+1712
+1708
+1712
+1729
+1728
+1729
+1730
+1738
+1741
+1730
+1733
+1730
+1729
+1726
+1728
+1745
+1755
+1754
+1755
+1760
+1753
+1747
+1746
+1747
+1749
+1750
+1748
 1749
+1743
+1745
+1754
+1757
+1763
+1766
+1775
+1773
+1774
+1773
+1746
+1747
+1732
+1730
+1709
+1721
+1727
 1718
-1536
+1717
+1701
+1700
+1701
+1705
+1712
+1723
+1724
+1725
+1720
+1727
+1728
+1746
+1744
+1760
+1748
+1747
+1746
+1771
+1786
+1784
+1786
+1783
+1795
+1793
+1794
+1808
+1793
+1808
 1811
-113
-1008
-1908
-1799
-1914
-1603
-1782
-1980
-1228
-1838
-2006
-1953
-1846
-1903
-1470
-1774
-1599
-1446
-1324
-1054
-1952
-1928
-1997
-1764
-1943
-1932
-1615
-1428
-1036
-721
-1097
-1998
-1033
-1892
-1904
-1803
-1825
-1370
+1807
+1808
+1806
+1841
+1860
+1861
+1840
+1839
+1831
 1836
+1829
+1818
+1816
+1817
+1846
+1835
+1827
+1815
+1816
+1832
+1831
+1830
+1831
+1829
+1828
+1829
+1831
+1830
+1838
+1852
 1853
-1963
-1469
-1385
-246
-1987
-1153
-178
-1790
-1927
-1139
+1851
 1865
-1804
-1974
-1235
-1681
-1185
-2009
-1894
-1141
-1203
-1808
+1866
+1889
+1890
+1888
+1887
+1879
+1859
+1860
+1863
 1867
-1274
-1891
-1779
-1342
-1920
-851
-1994
+1868
+1860
+1872
+1873
+1881
+1895
+1893
+1892
+1899
+1901
+1907
+1916
+1906
+1916
+1917
+1928
+1933
+1921
+1924
+1925
+1935
+1952
+1953
+1959
+1960
+1958
+1962
+1988
+1995
+1985
+1988
+1986
+1989
+2003
+2004
+2009
+2011
+2020
+2021
+2040
+2039
+2024
+2029
+2030
+2037
+2038
+2037
+2040
+2038
+2042
+2045
+2046
+2051
+2046
+2045
+2034
+2033
+2011
+2015
+2025
+2011
+2012
+2011
+1993
+2007
+1999
 1975
-1979
-1880
-1647
-1365
-448
-1119
-1256
-1212
-1268
-1878
-1805
+1970
+1985
+1990
+1989
+1986
+1989
+1991
+1995
+1978
+1976
+1956
+1958
+1945
+1930
+1933
+1931
+1926
+1937
+1936
+1935
+1942
+1936
+1934
+1918
+1919
+1923
+1929
+1935
+1952
+1961
+1959
+1960
+1947
+1948
+1949
+1946
+1944
+1961
+1929
+1932
+1944
+1933
+1928
+1920
 1889
-1870
+1894
+1886
 1906
-1959
+1900
+1895
+1890
+1901
+1904
+1903
 1898
-1305
-1559
-1088
-1845
-1783
-1841
-1864
-1961
-1267
-1437
-1823
-801
-1579
-1538
-1745
-1972
-1259
-1899
-1517
+1921
+1922
+1931
+1933
+1939
 1940
-1543
-1882
+1939
+1927
+1920
+1934
+1947
+1946
+1956
+1955
+1949
+1951
+1953
+1951
+1949
+1952
+1942
+1945
 1933
-1240
-1608
-1263
-1429
-1197
-1508
-1631
-1988
-1350
-1638
-1800
-1999
-1822
-1776
-1896
-1610
-1831
-1921
-1535
-1526
-1491
-1876
-1476
+1934
+1917
+1927
+1934
+1913
+1914
+1911
+1912
+1920
+1919
+1915
+1917
+1943
+1951
+1952
 1945
-1702
-1900
-1814
-1289
-1992
-1859
-1967
+1950
+1929
+1926
+1933
+1935
+1949
+1947
 1966
-1283
-2002
-1195
-1066
-1924
+1967
+1945
+1972
+1985
+1962
+1964
+1956
+1942
+1943
+1937
+1936
+1933
+1941
+1949
+1965
 1968
-1835
-1971
-1977
-1430
-1844
-1465
-1595
+1969
+1970
 1957
-1472
-219
-1851
+1956
+1957
+1962
+1939
+1942
+1957
+1956
+1961
+1960
+1959
+1956
+1957
+1983
+1981
+1979
+1976
+1969
+1974
+1952
+1938
+1952
+1955
+1952
+1958
+1952
+1964
+1965
+1956
+1959
+1960
+1962
+1961
+1960
+1967
+1968
+1979
+1989
+1990
+1993
+2004
+2003
+2012
+2006
+1994
+1998
+1988
+1991
+1987
+1986
+1987
+1985
+1982
+1985
+1988
+1990
+1984
+1978
+1967
+1978
+1990
+1984
+1985
+1984
+1985
+2009
+2007
+2000
+1992
+2012
+2011
+2020
+2021
+2022
+2017
+2000
+1975
+1989
+1988
+1975
+1954
 1955
+1947
+1954
+1971
+1970
+1973
+1981
+1982
+1984
+1996
+1992
+1994
+1996
+1997
+2001
+1998
+2000
+1998
+1997
+1999
+2007
+2001
+2007
+2005
+2003
+2001
+2003
+1999
+1997
+1980
+1981
+1999
+2005
+2011
+2016
+2017
+2026
+2027
+2020
+2021
+2023
+2024
+2025
+2024
+2025
+2029
+2033
+2035
+2039
+2051
+2052
+2054
+2065
+2082
+2084
+2101
+2097
+2096
+2097
+2092
+2104
+2105
+2101
+2092
+2094
+2100
+2101
+2095
+2096
+2093
+2118
+2116
+2152
+2161
+2162
+2163
+2165
+2174
+2163
+2183
+2187
+2155
+2156
+2158
+2162
+2155
+2148
+2147
+2149
+2148
+2142
+2144
+2140
+2129
+2132
+2133
+2137
+2143
+2140
+2150
+2135
+2134
+2133
+2136
+2145
+2136
+2137
+2140
+2141
+2118
+2125
+2106
+2104
+2089
+2088
+2076
+2063
+2060
+2054
+2047
+2046
+2047
+2050
+2051
+2046
+2051
+2061
+2060
+2066
+2068
+2072
+2073
+2083
+2098
+2101
+2096
+2098
+2099
+2103
+2093
+2092
+2111
+2129
+2152
+2159
+2155
+2163
+2155
+2158
+2163
+2166
+2170
+2161
+2155
+2159
+2147
+2146
+2154
+2165
+2172
+2163
+2179
+2182
+2180
+2168
+2172
+2179
+2181
+2183
+2176
+2147
+2170
+2172
+2173
+2153
+2158
+2140
+2135
+2136
+2134
+2130
+2134
+2156
+2161
+2162
+2163
+2149
+2150
+2159
+2160
+2161
+2178
+2185
+2183
+2158
+2173
+2168
+2170
+2165
+2181
+2173
+2175
+2178
+2183
+2185
+2184
+2189
+2202
+2203
+2191
+2176
+2177
+2163
+2150
+2159
+2158
+2153
+2139
+2136
+2135
+2143
+2155
+2166
+2171
+2183
+2190
+2180
+2183
+2165
+2166
+2167
+2168
+2160
+2161
+2174
+2175
+2172
+2176
+2198
+2205
+2210
+2211
+2223
+2249
+2254
+2267
+2260
+2263
+2256
+2258
+2265
+2278
+2279
+2278
+2271
+2273
+2278
+2279
+2272
+2274
+2286
+2273
+2279
+2278
+2264
+2263
+2264
+2274
+2287
+2308
+2309
+2310
+2305
+2304
+2303
+2305
+2317
+2316
+2318
+2319
+2320
+2322
+2326
+2335
+2359
+2351
+2353
+2354
+2356
+2341
+2338
+2333
+2334
+2333
+2344
+2334
+2344
+2323
+2341
+2325
+2317
+2327
+2323
+2321
+2312
+2297
+2302
+2304
+2315
+2308
+2317
+2330
+2350
+2360
+2341
+2342
+2341
+2342
+2357
+2363
+2353
+2355
+2352
+2354
+2360
+2361
+2348
+2354
+2355
+2345
+2346
+2347
+2360
+2358
+2360
+2361
+2364
+2365
+2354
+2361
+2362
+2373
+2375
+2373
+2365
+2346
+2362
+2359
+2357
+2373
+2397
+2398
+2394
+2396
+2401
+2421
+2414
+2420
+2406
+2407
+2403
+2402
+2401
+2397
+2396
+2420
+2444
+2446
+2428
+2427
+2428
+2431
+2429
+2433
+2463
+2487
+2495
+2524
+2535
+2542
+2552
+2575
+2573
+2574
+2568
+2576
+2583
diff --git a/01/src/main.rs b/01/src/main.rs
index b7cdbbf..5c4348b 100644
--- a/01/src/main.rs
+++ b/01/src/main.rs
@@ -1,7 +1,5 @@
 use advent_lib::prelude::*;
 
-use std::collections::BTreeSet;
-
 
 fn main() -> Result<()> {
   let mut args = std::env::args();
@@ -11,56 +9,57 @@ fn main() -> Result<()> {
   let _ = args.next();
   let filename = args.next().unwrap();
 
-  let mut input = advent_lib::read_int_file(&filename)?;
-
-  input.sort();
-
-  let mut input_set = BTreeSet::new();
-  for item in &input {
-    input_set.insert(item);
-  }
+  let input = advent_lib::read_int_file(&filename)?;
+
+  {
+    let mut last_item = None;
+    let mut n_increases = 0;
+    for item in &input {
+      match last_item {
+        Some(value) => {
+          if *item > value {
+            n_increases += 1;
+          }
+        }
+        None => { }
+      }
 
-  for i in 0 .. input.len() {
-    let a = input[i];
-    if a > 2020 {
-      break;
+      last_item = Some(*item);
     }
 
-    let b = 2020 - a;
-    if input_set.contains(&b) {
-      let product = a * b;
-      println!("a: {:?}, b: {:?}, a*b: {:?}", a, b, product);
-      break;
-    }
+    println!("{}", n_increases);
   }
 
-  let mut done = false;
-  for i in 0 .. input.len() {
-    if done {
-      break;
-    }
-
-    let a = input[i];
-    if a > 2020 {
-      break;
-    }
-
-    for j in i+1 .. input.len() {
-      let b = input[j];
-
-      if a + b > 2020 {
-        break;
+  {
+    let mut window = Vec::new();
+    let mut last_sum = None;
+    let mut n_increases = 0;
+    for item in &input {
+      window.push(item);
+      if window.len() > 3 {
+        let _ = window.remove(0);
       }
 
-      let c = 2020 - a - b;
-      if input_set.contains(&c) {
-        let product = a * b * c;
-        println!("a: {:?}, b: {:?}, c: {:?}, a*b*c: {:?}", a, b, c, product);
-
-        done = true;
-        break;
+      if window.len() == 3 {
+        let mut sum = 0;
+        for a in &window {
+          sum += *a;
+        }
+
+        match last_sum {
+          None => { }
+          Some(value) => {
+            if sum > value {
+              n_increases += 1;
+            }
+          }
+        }
+
+        last_sum = Some(sum);
       }
     }
+
+    println!("{}", n_increases);
   }
 
   Ok(())
diff --git a/01/tests/main.rs b/01/tests/main.rs
index b3d3cec..bbd8e0a 100644
--- a/01/tests/main.rs
+++ b/01/tests/main.rs
@@ -9,8 +9,8 @@ fn personal_input() -> Result<(), Box<dyn std::error::Error>> {
 
   command.arg("input");
   command.assert().success().stdout(
-      "a: 246, b: 1774, a*b: 436404\n\
-      a: 448, b: 721, c: 851, a*b*c: 274879808\n");
+      "1215\n\
+      1150\n");
 
   Ok(())
 }
-- 
cgit 1.4.1