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comparison 2017/day02.d @ 3:b5533de6ff5b

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move all app.d's to top level
author Jordi Gutiérrez Hermoso <jordigh@octave.org>
date Thu, 07 Dec 2017 11:44:52 -0500
parents 2017/02/app.d@772b9f146b20
children
comparison
equal deleted inserted replaced
2:4620ff0a058c 3:b5533de6ff5b
1 import std.stdio;
2 import std.array: array;
3 import std.algorithm: map, maxElement, minElement;
4 import std.string: split;
5 import std.conv: to;
6 import std.traits: isNumeric;
7
8 auto tokenize(numType, lineType)(lineType line)
9 if(isNumeric!numType)
10 {
11 return line.split.map!(x => to!numType(x)).array;
12 }
13
14 numType part1(numType, lineType)(lineType spreadsheet)
15 if(isNumeric!numType)
16 {
17 numType checksum = 0;
18 foreach(line; spreadsheet) {
19 checksum += line.maxElement - line.minElement;
20 }
21 return checksum;
22 }
23
24 numType part2(numType, lineType)(lineType spreadsheet)
25 if(isNumeric!numType)
26 {
27 numType checksum = 0;
28 foreach(line; spreadsheet) {
29 nextline:
30 foreach(idx, x; line) {
31 foreach (y; line[idx+1..$]) {
32 if (x % y == 0) {
33 checksum += x/y;
34 continue nextline;
35 }
36 if (y % x == 0) {
37 checksum += y/x;
38 continue nextline;
39 }
40 }
41 }
42 }
43 return checksum;
44 }
45
46 void main(string[] args) {
47 alias numType = int;
48 auto spreadsheet =
49 File(args[1])
50 .byLineCopy
51 .array
52 .map!(line => tokenize!numType(line));
53 auto result1 = part1!numType(spreadsheet);
54 auto result2 = part2!numType(spreadsheet);
55 writeln(result1);
56 writeln(result2);
57 }