8 lines
267 B
Text
8 lines
267 B
Text
fcn recamanW{ // -->iterator -->(n,a,True if a is a dup)
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Walker.tweak(fcn(rn,rp,d){
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n,p,a := rn.value, rp.value, p - n;
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if(a<=0 or d.find(a)) a+=2*n;
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d.incV(a); rp.set(a);
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return(rn.inc(),a,d[a]>1);
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}.fp(Ref(0),Ref(0),Dictionary()) )
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}
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