回答編集履歴
3
追記
answer
CHANGED
|
@@ -63,4 +63,27 @@
|
|
|
63
63
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.Where(a => a.SequenceEqual(comparison))
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64
64
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.Select(a => a.Key)
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65
65
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.ToArray();
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|
66
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+
```
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|
67
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+
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|
68
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+
# 追記
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|
69
|
+
|
|
70
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+
多次元配列の別解
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|
71
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+
|
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72
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+
```C#
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|
73
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+
var cells = new int[,]
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|
74
|
+
{
|
|
75
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+
{ 0, 0, 0 },
|
|
76
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+
{ 0, 0, 0 },
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77
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+
{ 1, 1, 0 },
|
|
78
|
+
{ 0, 0, 0 },
|
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79
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+
{ 1, 1, 1 },
|
|
80
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+
};
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81
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+
var comparison = new int[] { 0, 0, 0 };
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82
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+
int[] indexarr = Enumerable
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83
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+
.Range(0, cells.GetLength(0))
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84
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+
.Where(index => Enumerable
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|
85
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+
.Range(0, cells.GetLength(1))
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86
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+
.Select(a => cells[index, a])
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87
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+
.SequenceEqual(comparison))
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88
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+
.ToArray();
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66
89
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```
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2
追記
answer
CHANGED
|
@@ -40,4 +40,27 @@
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|
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40
40
|
.Select((a, i) => a.SequenceEqual(comparison) ? i : -1)
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41
41
|
.Where(a => a != -1)
|
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42
42
|
.ToArray();
|
|
43
|
+
```
|
|
44
|
+
|
|
45
|
+
# 追記
|
|
46
|
+
|
|
47
|
+
多次元配列の別解
|
|
48
|
+
|
|
49
|
+
```C#
|
|
50
|
+
var cells = new int[,]
|
|
51
|
+
{
|
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52
|
+
{ 0, 0, 0 },
|
|
53
|
+
{ 0, 0, 0 },
|
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54
|
+
{ 1, 1, 0 },
|
|
55
|
+
{ 0, 0, 0 },
|
|
56
|
+
{ 1, 1, 1 },
|
|
57
|
+
};
|
|
58
|
+
var comparison = new int[] { 0, 0, 0 };
|
|
59
|
+
int[] indexarr = cells
|
|
60
|
+
.Cast<int>()
|
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61
|
+
.Select((value, index) => new { value, index })
|
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62
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+
.GroupBy(a => a.index / cells.GetLength(1), a => a.value)
|
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63
|
+
.Where(a => a.SequenceEqual(comparison))
|
|
64
|
+
.Select(a => a.Key)
|
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65
|
+
.ToArray();
|
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43
66
|
```
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1
追記
answer
CHANGED
|
@@ -20,4 +20,24 @@
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20
20
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.Select((a, i) => a.SequenceEqual(comparison) ? i : -1)
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21
21
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.Where(a => a != -1)
|
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22
22
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.ToArray();
|
|
23
|
+
```
|
|
24
|
+
|
|
25
|
+
# 追記
|
|
26
|
+
|
|
27
|
+
ジャグ配列を使った場合
|
|
28
|
+
|
|
29
|
+
```C#
|
|
30
|
+
var cells = new int[][]
|
|
31
|
+
{
|
|
32
|
+
new[] { 0, 0, 0 },
|
|
33
|
+
new[] { 0, 0, 0 },
|
|
34
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+
new[] { 1, 1, 0 },
|
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35
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+
new[] { 0, 0, 0 },
|
|
36
|
+
new[] { 1, 1, 1 },
|
|
37
|
+
};
|
|
38
|
+
var comparison = new int[] { 0, 0, 0 };
|
|
39
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+
int[] indexarr = cells
|
|
40
|
+
.Select((a, i) => a.SequenceEqual(comparison) ? i : -1)
|
|
41
|
+
.Where(a => a != -1)
|
|
42
|
+
.ToArray();
|
|
23
43
|
```
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