getting wrong answer in KMXOR checked all the cases given in the editorial

link text
this is my solution

The problem is “Best Cake Ever”

Noting that the answer doesn’t have to exactly match - the quantities just have to produce the right XOR value - you can generate some more test cases from the accepted solutions. For example I generated:

Input:

4
1 13
2 13
5 13
2 22

Output:

13
8 7
8 6 1 1 1
16 15

although admittedly I did also identify that N=1 is an edge case (as are K<4 since quantity choices are limited).