I am a bit confused here what's the difference? given--> (1 ≤ n ≤ 10^18)

Approach — 1 long min = n/6+(n % 6 > 0 ? 1 : 0);

Approach — 2 long min = (long)Math.ceil((n * 1.0)/6);

Approach — 1 passed all the test cases

Approach — 2 failed on large values of n