question: calculates 2 in power of integer value x concode_field_sep PlaceHolder placeHolder concode_field_sep double linearInterpolation concode_elem_sep BigDecimal bigFactorial concode_elem_sep long factorial concode_elem_sep long lcm concode_elem_sep long gcd concode_elem_sep int minimum concode_elem_sep int levenshteinDistance concode_elem_sep BigDecimal detCrout concode_elem_sep long combination
target: long function ( long arg0 ) { if ( arg0 < 0 ) { return 1 ; } return 1 << arg0 ; }