public static void compute ( ArrayList < Integer > arr , int n ) {
  ArrayList < Integer > answer = new ArrayList < Integer > ( ) ;
  int GCD_of_array = findGCD ( arr , n ) ;
  if ( GCD_of_array == arr . get ( 0 ) ) {
    answer . add ( arr . get ( 0 ) ) ;
    for ( int i = 1 ;
    i < n ;
    i ++ ) {
      answer . add ( arr . get ( 0 ) ) ;
      answer . add ( arr . get ( i ) ) ;
    }
    for ( int i = 0 ;
    i < answer . size ( ) ;
    i ++ ) System . out . print ( answer . get ( i ) + " " ) ;
  }
  else System . out . print ( "No array " + "can be build" ) ;
}

public static void compute ( ArrayList < Integer > arr , int n ) { ArrayList < Integer > answer = new ArrayList < Integer > ( ) ; int GCD_of_array = findGCD ( arr , n ) ; if ( GCD_of_array == arr . get ( 0 ) ) { answer . add ( arr . get ( 0 ) ) ; for ( int i = 1 ; i < n ; i ++ ) { answer . add ( arr . get ( 0 ) ) ; answer . add ( arr . get ( i ) ) ; } for ( int i = 0 ; i < answer . size ( ) ; i ++ ) System . out . print ( answer . get ( i ) + " ▁ " ) ; } else System . out . print ( " No ▁ array ▁ " + " can ▁ be ▁ build " ) ; }
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