public static void main ( String [ ] args ) {
  int arr [ ] = {
    2 , 5 , 1 , 20 , 6 };
    int n = arr . length ;
    dp = new int [ 1001 ] [ 15001 ] ;
    System . out . println ( countTripletSum ( arr , n ) ) ;
  }
  
public static void main ( String [ ] args ) { int arr [ ] = { 2 , 5 , 1 , 20 , 6 } ; int n = arr . length ; dp = new int [ 1001 ] [ 15001 ] ; System . out . println ( countTripletSum ( arr , n ) ) ; }
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