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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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16
Task/Happy-numbers/Tcl/happy-numbers.tcl Normal file
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proc is_happy n {
set seen [list]
while {$n > 1 && [lsearch -exact $seen $n] == -1} {
lappend seen $n
set n [sum_of_squares [split $n ""]]
}
return [expr {$n == 1}]
}
set happy [list]
set n -1
while {[llength $happy] < 8} {
if {[is_happy $n]} {lappend happy $n}
incr n
}
puts "the first 8 happy numbers are: [list $happy]"