Given an integer n, the task is to find whether n can be written as sum of three consecutive integer.
Example 1:
Input: n = 6
Output: 1 2 3
Explanation: 6 = 1+2+3
Hence 6 can be written as sum of
three consecutive integer.
Example 2:
Input: n = 7
Output: -1
Explanation: 7 cannot be written as
sum of three consecutive integer.
Your Task:
You dont need to read input or print anything. Complete the function consecutiveSum() which takes n as input parameter and returns a vector contains of three consecutive integers if it is possible else -1.
Expected Time Complexity: O(1)
Expected Auxiliary Space: O(1)
Constraints:
1<= n <=10000

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