Given an integer n, the task is to find whether n can be written as sum of three consecutive integer.
Input: n = 6 Output: 1 2 3 Explanation: 6 = 1+2+3 Hence 6 can be written as sum of three consecutive integer.
Input: n = 7 Output: -1 Explanation: 6 cannot be written as sum of three consecutive integer.
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)
1<= n <=10000
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