day02

3 files changed, 54 insertions, 0 deletions

diff --git a/day02 b/day02
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--- /dev/null
+++ b/day02
@@ -0,0 +1,16 @@
+3093	749	3469	142	2049	3537	1596	3035	2424	3982	3290	125	249	131	118	3138
+141	677	2705	2404	2887	2860	1123	2714	117	1157	2607	1800	153	130	1794	3272
+182	93	2180	114	103	1017	95	580	2179	2470	2487	2806	1574	1325	1898	1706
+3753	233	3961	3747	3479	3597	1303	2612	4043	1815	3318	737	197	3943	239	254
+113	147	961	157	3514	3045	1270	3528	1369	3377	492	156	1410	3251	1839	1249
+3948	3651	888	3631	253	220	4266	1284	3595	237	2138	3799	2319	254	267	1182
+399	446	795	653	154	762	140	487	750	457	730	150	175	841	323	492
+999	979	103	99	1544	1404	100	1615	840	92	1552	1665	1686	76	113	1700
+4049	182	3583	1712	200	3326	3944	715	213	1855	2990	3621	2560	842	249	2082
+2610	4749	2723	2915	2189	3911	124	164	1895	3095	3992	134	127	4229	3453	4428
+105	692	101	150	193	755	84	185	622	851	706	251	86	408	774	831
+238	217	224	1409	1850	2604	363	265	596	2933	2641	2277	803	2557	1399	237
+304	247	192	4369	997	5750	85	1248	4718	3888	5228	5116	5880	5348	6052	245
+238	373	228	395	86	59	289	87	437	384	233	79	470	403	441	352
+151	3473	1435	87	1517	1480	140	2353	1293	118	163	3321	2537	3061	1532	3402
+127	375	330	257	220	295	145	335	304	165	151	141	289	256	195	272
diff --git a/day02.cc b/day02.cc
new file mode 100644
index 0000000..ba955ee
--- /dev/null
+++ b/day02.cc
@@ -0,0 +1,31 @@
+#include <algorithm>
+#include <iostream>
+#include <istream>
+#include <iterator>
+#include <sstream>
+#include <vector>
+
+using namespace std;
+
+int main()
+{
+	string line;
+	int s1 = 0, s2 = 0;
+
+	while (getline(cin, line)) {
+		istringstream is{line};
+		vector<int> v{istream_iterator<int>(is),
+		    istream_iterator<int>()};   // slurp it for part 2
+
+		auto [min, max] = minmax_element(begin(v), end(v));
+		s1 += *max - *min;
+
+		for (int a : v)
+			for (int b : v)
+				if (a > b && a % b == 0)
+					s2 += a / b;
+	}
+
+	cout << s1 << endl << s2 << endl;
+	return 0;
+}
diff --git a/day02.k b/day02.k
new file mode 100644
index 0000000..5a369a0
--- /dev/null
+++ b/day02.k
@@ -0,0 +1,7 @@
+d:+.:'0:`day02
++/(|/d)-&/d                        / 45351
++/{|/|/{r*x=y*_r:x%y}/:[x;x]}'+d   / 275
+\\
+
++/{*{(x>1)&x=_x}#,/x%\:x}'d  / BUG in k division?
++/{|/{x=_x}#,/x%/:x}'+d
\ No newline at end of file