seongbeom_park/google-foobar-challenge
1
1
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

finish extra/find-the-access-codes

Browse Source 
Submitting solution...
Submission: SUCCESSFUL. Completed in: 1 hr, 6 mins, 52 secs.
This commit is contained in:
Seongbeom Park 2022-04-30 03:24:09 +09:00
parent a324af524f
commit 0d75806e4a
2 changed files with 14 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
README.md
View File

@ -31,7 +31,7 @@
## Encrypted message
CFcSBwgCCBoHRhkKU1cGAA4AGU5YQR5THBwNFwoGGAxTQQMQVBUSBg4EAAwQRhUQVBUHFAQTGRpT QQMQVBkPERkECQAWDVwXX1BGEwgJBAwCBFRVHQRGUlFBShwaDVZTGBUFVUdBShsVA1tZBwNGUlFB ShoVB1wXX1BGFAQOSklOQR5HGh5AVRY=
## Extra
## Extra Level
* Requested problems after level 5 clear
### dodge-the-laser
@ -68,5 +68,9 @@ CFcSBwgCCBoHRhkKU1cGAA4AGU5YQR5THBwNFwoGGAxTQQMQVBUSBg4EAAwQRhUQVBUHFAQTGRpT QQM
* Reference
* [Maximum Matching in General Graph](https://www.secmem.org/blog/2020/04/18/Blossom/)
### extra/prepare-the-bunnies-escape
### prepare-the-bunnies-escape
* Completed in: 3 hrs, 17 mins, 20 secs.
### find-the-access-codes
* Completed in: 1 hr, 6 mins, 52 secs.

33
extra/find-the-access-codes/solution.py
View File

@ -1,30 +1,15 @@
def solution(l):
edges = {n : {'count': 1, 'multiple': set(), 'divisor': set()} for n in set(l)}
nodes = {i: [] for i in range(len(l))}
for i in range(len(l)):
x = l[i]
if edges[x]['count'] > 1:
continue
for j in range(i+1, len(l)):
y = l[j]
if x == y:
edges[x]['count'] += 1
elif x > y and x % y == 0:
edges[x]['divisor'].add(y)
edges[y]['multiple'].add(x)
elif y > x and y % x == 0:
edges[x]['multiple'].add(y)
edges[y]['divisor'].add(x)
x, y = l[i], l[j]
if y % x == 0:
nodes[i] += [j]
result = 0
for x in edges:
# 1. (d, x, m)
result += len(edges[x]['divisor']) * len(edges[x]['multiple'])
# 2. (d, x, x) (x, x, m)
if edges[x]['count'] >= 2:
result += len(edges[x]['divisor']) + len(edges[x]['multiple'])
# 3. (x, x, x)
if edges[x]['count'] >= 3:
result += 1
for i in nodes:
for j in nodes[i]:
result += len(nodes[j])
return result
@ -32,9 +17,7 @@ tests = [
([1, 1, 1], 1),
([1, 2, 3, 4, 5, 6], 3),
([2, 3, 4], 0),
([1, 1, 2, 3, 4, 5, 6], 8),
([3 for i in range(2000)], 1),
([i for i in range(1, 2000)], 40777),
([1, 1, 2, 3, 4, 5, 6], 11),
]
for i, o in tests: