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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Vampire-number/PARI-GP/vampire-number.parigp Normal file
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fang(n)=my(v=digits(n),u=List());if(#v%2,return([]));fordiv(n,d,if(#Str(d)==#v/2 && #Str(n/d)==#v/2 && vecsort(v)==vecsort(concat(digits(d),digits(n/d))) && (d%10 || (n/d)%10), if(d^2>n,return(Vec(u))); listput(u, d))); Vec(u)
k=25;forstep(d=4,6,2,for(n=10^(d-1),10^d-1,f=fang(n); for(i=1,#f,print(n" "f[i]" "n/f[i]); if(i==#f && k--==0,return))))
print();v=[16758243290880, 24959017348650, 14593825548650];
for(i=1,#v,f=fang(v[i]); for(j=1,#f, print(v[i]" "f[j]" "v[i]/f[j])))