question: public static int numberOfTrailingZerosSigned ( long [ ] v ) { for ( int p = 0 ; ; p ++ ) { if ( p == v . length ) { return - 1 ; } if ( v [ p ] != 0 ) { return Long . numberOfTrailingZeros ( v [ p ] ) + p * Long . SIZE ; } } }
target:  Find the number of trailing zeros.