New answers tagged palindrome
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Number of string permutations that are palindromes
Vyxal 3, 5 bytes
⑴/⇄⧖∑
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Add Y to X to get a palindrome
Desmos, 137 bytes
q(x,n)=floor(mod(x/10^n,10))
l=floor(log(x+y)+1)-1
f(x,y)=\left\{(q(x+y,[l...0])-q(x+y,[0...l]))^2.total=0:y,f(x,y+1)\right\}
g(x)=f(x,0)
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- 151
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Add Y to X to get a palindrome
AWK, 76 bytes
{for(i--;!z;i++){b=X;for(j=0;j++<split($0,a,X);)b=a[j]b;b==$0++&&z++}}1,$0=i
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Add Y to X to get a palindrome
Perl 5, 60 + 1 (-n option) = 61 bytes
$==0;$_++,$=++while@_=/./g,grep$_[$_++]-$_[-$_],0..$#_;say$=
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- 1,515
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Add Y to X to get a palindrome
Haskell, 45 bytes
f n=[x-n|x<-[n..],show x==(reverse.show)x]!!0
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Tried (==).reverse<*>id$show x as the ...
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