Introduction - If you have any usage issues, please Google them yourself
//Enter a plastic array int [] a, and the need to find int key,// return key after the post-sort subscript (index value), can be improved but not before the subscript// on a number key to speaking, only to return one should be easy to achieve but did not return the key to all of the subscript// If you can not find, then return-1// deficiencies is to sort