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Ingy döt Net 2013-04-10 22:43:41 -07:00
parent db842d013d
commit d066446780
11389 changed files with 98361 additions and 1020 deletions
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15
Task/Knuths-algorithm-S/PARI-GP/knuths-algorithm-s.pari Normal file
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KnuthS(v,n)={
my(u=vector(n,i,i));
for(i=n+1,#v,
if(random(i)<n,u[random(n)+1]=i)
);
vecextract(v,u)
};
test()={
my(v=vector(10),t);
for(i=1,1e5,
t=KnuthS([0,1,2,3,4,5,6,7,8,9],3);
v[t[1]+1]++;v[t[2]+1]++;v[t[3]+1]++
);
v
};