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ZCubes/Happy Numbers (view source)
Revision as of 10:05, 17 September 2021
, 10:05, 17 September 2021no edit summary
==Video==
==Video==
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{{#ev:youtube|c1nHGP63Mqo|480|left|Brocards Problem & Brown Numbers}}
{{#ev:youtube|c1nHGP63Mqo|480|left|Happy Numbers}}
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==ZCubes Code==
<pre>
function dohappy(n)
{
prev={}
prevnums=[]
originaln=n
do
{
if(prev[n])
{
console.log("MELCOIL",originaln,prevnums.concat(n))
return("MELCOIL")
}
prev[n]=true;
prevnums.push(n)
d=DIGITS(n)
n=SUM(d.$(x=>POWER(x,2)))
}while(prev[n]||n>1)
console.log("HAPPY",originaln,prevnums.concat(n))
return("HAPPY")
}
dohappy#;
dohappy(2..100)
</pre>
Output:-
7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100, 103, 109, 129, 130, 133, 139, 167, 176, 188, 190, 192, 193 are Happy numbers in the range of 2 to 100.
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*[[Z3 | Z3 home]]
*[[Z3 | Z3 home]]