解题思路:
注意事项:
参考代码:
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int a = scanner.nextInt(); int b = scanner.nextInt(); int[] n=new int[a]; for (int i = 0; i < n.length; i++) { n[i]=scanner.nextInt(); } for (int i = 0; i < b; i++) { int x=scanner.nextInt(); int y=scanner.nextInt(); if (x!=y) { int temp=n[x-1]; n[x-1]=n[y-1]; n[y-1]=temp; } } for (int i = 0; i < n.length; i++) { System.out.println(n[i]); } } }
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