Gray code by notogawa

i;main(n,_){for(printf("Gray code  n=%d",n=_%5+7);i>>n<n;)printf(!!(i++%n)+"\n%d",(i/n*2^i/n)>>n-i%n&1);}

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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