8 lines
88 B
Ruby
8 lines
88 B
Ruby
|
def perf(n)
|
||
|
|
sum = 0
|
||
|
|
for i in 1...n
|
||
|
|
sum += i if n % i == 0
|
||
|
|
end
|
||
|
|
sum == n
|
||
|
|
end
|