解题思路:
注意事项:
参考代码:
Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int a,b; String arr[][]; for (int i = 0; i < n; i++) { a = sc.nextInt(); b = sc.nextInt(); arr = new String[a][a]; for (int j = 0; j < a; j++) { for (int k = 0; k < a; k++) { arr[j][k] = " "; } } for (int j = 0; j < b; j++) { for (int k = 0; k < a; k++) { arr[k][k] = "X"; arr[k][a - 1 - k] = "X"; } } for (int j = 0; j < b; j++) { if (j == 0) { for (int k = 0; k < a; k++) { for (int l = 0; l < a; l++) { System.out.print(arr[k][l]); } System.out.println(); } } else { for (int k = 1; k < a; k++) { for (int l = 0; l < a; l++) { System.out.print(arr[k][l]); } System.out.println(); } } } System.out.println(); }
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