a = 0
while max(V) > 0:
C = [ 0 ] * max(V)
for x in V:
if x%2==0:
a += C[x//2]
else:
C[x//2] += 1
V = [ x//2 for x in V ]
print(a)
How does Counting Inversions work in the following code?
a = 0
while max(V) > 0:
C = [ 0 ] * max(V)
for x in V:
if x%2==0:
a += C[x//2]
else:
C[x//2] += 1
V = [ x//2 for x in V ]
print(a)