c - Third smallest number in matrices and its addition -

How can I add a + one metric (array data structure) and after that it gets the third smallest number in C language (Not C ++)? Thanks for the code.

The example code is as follows:

  zero addition matrix (unsigned complete) Size, Double Constance * Concrete, Double Corn * Const B, Double * Cant Rage) {int i; For (i = 0; i  res [j]) for {int k; (k = 2; k! = J; - K] {res [k] = res [k - 1];} res [j] = input [i]; break;}}} return ridge [2];}  

edited Do: It will be your job to change the type and size of the matrix.