原题链接:[编程入门]自定义函数之数字后移
import java.io.*; /** * 善用 System.arraycopy() */ public class Main { public static BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); public static BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out)); public static StreamTokenizer cin = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in))); public static PrintWriter cout = new PrintWriter(new OutputStreamWriter(System.out)); public static void main(String[] args) throws Exception { cin.nextToken(); int n = (int) cin.nval; int[] num = new int[n]; for (int i = 0; i < n; i++) { cin.nextToken(); num[i] = (int) cin.nval; } cin.nextToken(); int m = (int) cin.nval; int[] newNum = new int[n]; System.arraycopy(num, n - m, newNum, 0, m); System.arraycopy(num, 0, newNum, m, n - m); for (int i : newNum) { cout.printf("%d ", i); } cout.flush(); } }
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