public static void main ( String [ ] args ) {
  int coeff [ ] = {
    2 , 2 , 5 };
    int rhs = 4 ;
    int n = coeff . length ;
    System . out . println ( countSol ( coeff , 0 , n - 1 , rhs ) ) ;
  }
  
public static void main ( String [ ] args ) { int coeff [ ] = { 2 , 2 , 5 } ; int rhs = 4 ; int n = coeff . length ; System . out . println ( countSol ( coeff , 0 , n - 1 , rhs ) ) ; }
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