this is the sixth time i post the same quistion and no one give me write answer !! if expert can't solve it, i wonder how the instructor expect me to solve it in 2 second?? (backtrack recursive )

 0 0 20 37 12 29 4 0 27 0 0 0 11 0 0 0 26 43 18 0 0 9 33 1 25 49 17 41 0 0 32 7 24 0 0 0 39 0 31 0 23 0 0 21 38 13 0 0 0

with c++ code solve this magic square (((((((( the answer should be within 2 second))))) .I wrote a code my self and copied others but they takes forever . show clock if you can please . its about recursive . this is a solution in chegg has all the required functions but again it takes forever twoooooooooo seconds or close to it MAGIC SQUARES Backtracking and Recursion Pretty mu... | Chegg.com