diff --git a/第二题 b/第二题
new file mode 100644
index 0000000..68d52d9
--- /dev/null
+++ b/第二题
@@ -0,0 +1,47 @@
+#include<stdio.h>
+#define SIZE 9
+void printSudoku(int board[SIZE][SIZE]);
+int main()
+{
+	int board[SIZE][SIZE]={{5,3,0,0,7,0,0,0,0},
+	{6,0,0,1,9,5,0,0,0},
+	{0,9,8,0,0,0,0,6,0},
+	{8,0,0,0,6,0,0,0,3},
+	{4,0,0,8,0,3,0,0,1},
+	{7,0,0,0,2,0,0,0,6},
+	{0,6,0,0,0,0,2,8,0},
+	{0,0,0,4,1,9,0,0,5},
+	{0,0,0,0,8,0,0,7,9}};
+	printSudoku(board);
+	return 0;
+}
+void printSudoku(int board[SIZE][SIZE])
+{
+	for (int i=0;i<SIZE;i++)
+	{
+		for(int j=0;j<SIZE;j++)
+		{
+			printf("%2d",board[i][j]);
+			if((j+1)%3==0&&j<SIZE-1)
+			{
+				printf("|");
+			}
+		}
+		printf("\n");
+		if((i+1)%3==0&&i<SIZE-1)
+		{
+			for(int k=0;k<SIZE;k++)
+			{
+				if((k+1)%3==0&&k<SIZE-1)
+				{
+					printf("|");
+				}
+				else
+				{
+					printf("---");
+				}
+			}
+			printf("\n");
+		}
+	}
+}
\ No newline at end of file