加载中…Java实现蛇形矩阵---2016腾讯在线笔试题
(2016-04-04 11:09:56)| 分类： java |
import java.util.Scanner;
public class SnakeMatrix {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt(); //首先输入矩阵的维数
int a[][] = new int[n][n]; //存储所有元素的二维数组
int count = 1; //计数器，每走一步加一
//
for (int i = 0; i < n/2+1; i++) {
//up
for (int j = i; j < n-i; j++) {
a[i][j]= count++;
}
//right
for (int j = i+1; j < n-i; j++) {
a[j][n-i-1]= count++;
}
//down
for (int j = n-i-2; j >=i; j--) {
a[n-i-1][j]= count++;
}
//left
for (int j = n-i-2; j >i; j--) {
a[j][i]= count++;
}
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
System.out.print(a[i][j]+"\t");
if(j==n-1)
System.out.println();
}
}
}
}
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