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Once you know which rows need to be exchanged... just move the whole row in a loop...

One trick, although it's a bit more code... Make your "index row" (0?) a separate array of structs with...

Let me guess... it sorts column 0 but disconnectes it from column[i] in the process....

This is the fun part about 2d or 3d matrixes... if you want to keep the rows intact you have to shuffle the...