Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
"Sometimes he cheats and it's not true."
Maybe worth specifying what is not true, is it that there is no numbers missing, or that they don't sum to the same sum as the array as a whole?
Don't use only brute force, study the math behind:-)
My code in java runs for over 3000ms and when I try to submit, the test case 10 does not run in less than 10000ms hence the process terminates... I don't know how to make my code more efficient... Can anyone help?