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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Digital-root/Huginn/digital-root.huginn Normal file
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main( argv_ ) {
if ( size( argv_ ) < 2 ) {
throw Exception( "usage: digital-root {NUM}" );
}
n = argv_[1];
if ( ( size( n ) == 0 ) || ( n.find_other_than( "0123456789" ) >= 0 ) ) {
throw Exception( "{} is not a number".format( n ) );
}
shift = integer( '0' ) + 1;
acc = 0;
for ( d : n ) {
acc = 1 + ( acc + integer( d ) - shift ) % 9;
}
print( "{}\n".format( acc ) );
return ( 0 );
}