回答編集履歴
4
追記
answer
CHANGED
|
@@ -57,5 +57,25 @@
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57
57
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break
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58
58
|
|
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59
59
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dst[-1].append(i)
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60
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-
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60
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+
```
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61
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+
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62
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+
さらに追記
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|
63
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+
---
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64
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+
普通に読み辛いですし効率面も特段良くありませんが、個人的にはこういうのが好きです。
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65
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+
おまけです。
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66
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+
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67
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+
```Python
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68
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+
indice_1 = (
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69
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+
i for i, e in enumerate(src)
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70
|
+
if e == 1
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|
71
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+
)
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72
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+
dst = [
|
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73
|
+
[idx, *map(operator.itemgetter(0), zip(
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74
|
+
itertools.count(idx+1),
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75
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+
itertools.takewhile(
|
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76
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+
lambda e: e == 2, src[idx+1:]
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77
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+
)
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78
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+
))]
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79
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+
for idx in indice_1
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|
80
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+
]
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61
81
|
```
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3
追記
answer
CHANGED
|
@@ -38,4 +38,24 @@
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|
38
38
|
while i < len(src) and src[i] == 2:
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39
39
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dst[-1].append(i)
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40
40
|
i += 1
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41
|
+
```
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|
42
|
+
|
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43
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+
for文を使うなら二回に分けた方が無駄が少ないように思います。
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|
44
|
+
```Python
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|
45
|
+
dst = []
|
|
46
|
+
|
|
47
|
+
it = (
|
|
48
|
+
i for i, e in enumerate(src)
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|
49
|
+
if e == 1
|
|
50
|
+
)
|
|
51
|
+
for index_1 in it:
|
|
52
|
+
dst.append([index_1])
|
|
53
|
+
|
|
54
|
+
idx = index_1 + 1
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|
55
|
+
for i, e in enumerate(src[idx:], start=idx):
|
|
56
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+
if e != 2:
|
|
57
|
+
break
|
|
58
|
+
|
|
59
|
+
dst[-1].append(i)
|
|
60
|
+
|
|
41
61
|
```
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2
追記
answer
CHANGED
|
@@ -18,4 +18,24 @@
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|
|
18
18
|
**実行結果** [Wandbox](https://wandbox.org/permlink/SVnsvzydmFuJXlyh)
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|
19
19
|
```
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|
20
20
|
[[6], [9, 10, 11]]
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|
21
|
+
```
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|
22
|
+
|
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23
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+
コメントを受けて
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|
24
|
+
---
|
|
25
|
+
例えば、こんなふうに。
|
|
26
|
+
```Python
|
|
27
|
+
dst = []
|
|
28
|
+
|
|
29
|
+
i = 0
|
|
30
|
+
while i < len(src):
|
|
31
|
+
if src[i] != 1:
|
|
32
|
+
i += 1
|
|
33
|
+
continue
|
|
34
|
+
|
|
35
|
+
dst.append([i])
|
|
36
|
+
i += 1
|
|
37
|
+
|
|
38
|
+
while i < len(src) and src[i] == 2:
|
|
39
|
+
dst[-1].append(i)
|
|
40
|
+
i += 1
|
|
21
41
|
```
|
1
追記
answer
CHANGED
|
@@ -3,7 +3,9 @@
|
|
|
3
3
|
import re
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|
4
4
|
|
|
5
5
|
|
|
6
|
-
src = [4,
|
|
6
|
+
src = [4,4,2,4,5,3,1,3,4,1,2,2,3]
|
|
7
|
+
assert all(len(str(e)) == 1 for e in src) # srcの全要素は1桁
|
|
8
|
+
|
|
7
9
|
dst = [
|
|
8
10
|
[*range(m.start(), m.end())]
|
|
9
11
|
for m in re.finditer(r'12*', ''.join(map(str, src)))
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|
@@ -13,9 +15,7 @@
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|
|
13
15
|
print(dst)
|
|
14
16
|
```
|
|
15
17
|
|
|
16
|
-
**実行結果** [Wandbox](https://wandbox.org/permlink/
|
|
18
|
+
**実行結果** [Wandbox](https://wandbox.org/permlink/SVnsvzydmFuJXlyh)
|
|
17
19
|
```
|
|
18
20
|
[[6], [9, 10, 11]]
|
|
19
|
-
```
|
|
21
|
+
```
|
|
20
|
-
|
|
21
|
-
srcの全ての要素が1桁の整数との前提です。
|