回答編集履歴
1
edit
test
CHANGED
|
@@ -1 +1,75 @@
|
|
|
1
1
|
前から選んで、入れることができたら受け入れるという特に探索をしていないコードだからではないですか？
|
|
2
|
+
|
|
3
|
+
|
|
4
|
+
|
|
5
|
+
総当たり：
|
|
6
|
+
|
|
7
|
+
https://wandbox.org/permlink/8ug63FVQMO8Ef815
|
|
8
|
+
|
|
9
|
+
|
|
10
|
+
|
|
11
|
+
```python
|
|
12
|
+
|
|
13
|
+
class Item:
|
|
14
|
+
|
|
15
|
+
def __init__(self,name,weight):#クラスの定義
|
|
16
|
+
|
|
17
|
+
self.name=name
|
|
18
|
+
|
|
19
|
+
self.weight=weight
|
|
20
|
+
|
|
21
|
+
|
|
22
|
+
|
|
23
|
+
#初期化する
|
|
24
|
+
|
|
25
|
+
limit = 15
|
|
26
|
+
|
|
27
|
+
items=[Item("A",7),Item("B",4),Item("C",5),Item("D",6),Item("E",3)]
|
|
28
|
+
|
|
29
|
+
L=len(items)
|
|
30
|
+
|
|
31
|
+
|
|
32
|
+
|
|
33
|
+
import itertools
|
|
34
|
+
|
|
35
|
+
|
|
36
|
+
|
|
37
|
+
def calc_total_weight(items, choices, limit=15):
|
|
38
|
+
|
|
39
|
+
ret = sum([x.weight*a for x, a in zip(items, choices)])
|
|
40
|
+
|
|
41
|
+
if ret > limit:
|
|
42
|
+
|
|
43
|
+
return 0
|
|
44
|
+
|
|
45
|
+
return ret
|
|
46
|
+
|
|
47
|
+
|
|
48
|
+
|
|
49
|
+
choices_weight = [(choices, calc_total_weight(items, choices, limit=limit))
|
|
50
|
+
|
|
51
|
+
for choices in itertools.product([0, 1], repeat=L)]
|
|
52
|
+
|
|
53
|
+
ans = list(sorted(choices_weight, key=lambda x: x[1], reverse=True))
|
|
54
|
+
|
|
55
|
+
|
|
56
|
+
|
|
57
|
+
print('選んだ荷物の組み合わせの重みは')
|
|
58
|
+
|
|
59
|
+
print(ans[0][1])
|
|
60
|
+
|
|
61
|
+
best_weight = ans[0][1]
|
|
62
|
+
|
|
63
|
+
for v in ans:
|
|
64
|
+
|
|
65
|
+
if v[1] < best_weight:
|
|
66
|
+
|
|
67
|
+
break
|
|
68
|
+
|
|
69
|
+
print('選んだ荷物の組み合わせは')
|
|
70
|
+
|
|
71
|
+
print(v[0])
|
|
72
|
+
|
|
73
|
+
print([items[i].name for i, v in enumerate(v[0]) if v == 1])
|
|
74
|
+
|
|
75
|
+
```
|