The ability to simplify means to eliminate the unnecessary so that the necessary may speak.
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You're replying to a comment by Sherif.
And also here how to swap two vars without a temp var using bit wise operations:
i will write it in C
void Swap_Integers(int *x,int *y)
*x = *x ^ *y;
*y = *x ^ *y;
*x = *x ^ *y;
that is it and yeah it is obvious a little but here how it goes it depend on the concept that two XOR operations on the same var can be cancelled f.e. a ^ b ^ b = a
so first i put the XOR of both in x (x = x^y) now then to put x in y you just need another XOR with x (y = x ^ y ^y) and after that x will equal ( x ^ the new y (holding x inside) to be y ^ x ^x ) have fun and you can use this concept to make encryption also and i will leave that as an exercise to you ;) by the way nice work my friend peter
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Peter Krumins' blog about programming, hacking, software reuse, software ideas, computer security, browserling, google and technology.
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