Reorder vector using a vector of indices

Question

I\'d like to reorder the items in a vector, using another vector to specify the order:

char   A[]     = { \'a\', \'b\', \'c\' };
size_t ORDER[] = { 1, 0, 2 }         


        

Answer 1

If it is ok to modify the ORDER array then an implementation that sorts the ORDER vector and at each sorting operation also swaps the corresponding values vector elements could do the trick, I think.