-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathAre_they_the _same.py
More file actions
62 lines (50 loc) · 2.41 KB
/
Are_they_the _same.py
File metadata and controls
62 lines (50 loc) · 2.41 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
# Given two arrays a and b write a function comp(a, b) (orcompSame(a, b)) that checks whether the two arrays have the "same" elements, with the same multiplicities (the multiplicity of a member is the number of times it appears).
# "Same" means, here, that the elements in b are the elements in a squared, regardless of the order.
# Examples
# Valid arrays
# a = [121, 144, 19, 161, 19, 144, 19, 11]
# b = [121, 14641, 20736, 361, 25921, 361, 20736, 361]
# comp(a, b) returns true because in b 121 is the square of 11, 14641 is the square of 121, 20736 the square of 144, 361 the square of 19, 25921 the square of 161, and so on.
# It gets obvious if we write b's elements in terms of squares:
# a = [121, 144, 19, 161, 19, 144, 19, 11]
# b = [11*11, 121*121, 144*144, 19*19, 161*161, 19*19, 144*144, 19*19]
# Invalid arrays
# If, for example, we change the first number to something else, comp is not returning true anymore:
# a = [121, 144, 19, 161, 19, 144, 19, 11]
# b = [132, 14641, 20736, 361, 25921, 361, 20736, 361]
# comp(a,b) returns false because in b 132 is not the square of any number of a.
# a = [121, 144, 19, 161, 19, 144, 19, 11]
# b = [121, 14641, 20736, 36100, 25921, 361, 20736, 361]
# comp(a,b) returns false because in b 36100 is not the square of any number of a.
# Remarks
# a or b might be [] or {} (all languages except R, Shell).
# a or b might be nil or null or None or nothing (except in C++, COBOL, Crystal, D, Dart, Elixir, Fortran, F#, Haskell, Nim, OCaml, Pascal, Perl, PowerShell, Prolog, PureScript, R, Racket, Rust, Shell, Swift).
# If a or b are nil (or null or None, depending on the language), the problem doesn't make sense so return false.
# Note for C
# The two arrays have the same size (> 0) given as parameter in function comp.
def func (a,b):
if a==None or b==None:
return False
c = [x*x for x in a]
for x in b:
if x not in c:
return False
else:
c.remove(x)
return True
a = [121, 144, 19, 161, 19, 144, 19, 11]
b = [11*11, 121*121, 144*144, 19*19, 161*161, 19*19, 144*144, 19*19]
res0 = func(a,b)
print(res0)
a = [121, 144, 19, 161, 19, 144, 19, 11]
b = [11*21, 121*121, 144*144, 19*19, 161*161, 19*19, 144*144, 19*19]
res1 = func(a,b)
print(res1)
a = [121, 144, 19, 161, 19, 144, 19, 11]
b = [11*11, 121*121, 144*144, 190*190, 161*161, 19*19, 144*144, 19*19]
res2 = func(a,b)
print(res2)
a = [2,2,3]
b = [4,9,9]
res3 = func(a,b)
print(res3)