1.换钱币,最少给几个硬币 public class Main { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); int minx=getCoin(1024-n); System.out.println(minx); } private static int getCoin(int i) { int i64=i/64; int i16=(i%64)/16; int i4=(i%16)/4; int i1=(i...