Editorial - TRIPLETS

editorial
1

Problem link : Interesting Triplets
Difficulty : Medium
Setter : Harshit Garg

Code :

N=int(input())
ans=0
for a in range(1,N+1):
	if a*a*a>N: break
	for b in range(a,N+1):
		if a*b*b>N: break
		ans+=N//a//b-b+1
print(ans)