diff --git a/实验三(有问题版本).c b/实验三(有问题版本).c
new file mode 100644
index 0000000..1e3d426
--- /dev/null
+++ b/实验三(有问题版本).c
@@ -0,0 +1,119 @@
+#include<stdio.h>
+#include<string.h>
+#include <time.h>
+#include <stdlib.h>
+void print(int board[9][9])/*´òÓ¡µÄ³ÌÐò*/
+{
+	int i,j;
+	printf("The original Sudoku matrix: \n");
+	printf("|-----------------------|");
+printf("\n");
+for(i=0;i<9;i++)
+{
+	if(i==3)
+	{
+printf("|-----------------------|");
+printf("\n");
+	}
+		if(i==6)
+	{
+printf("|-----------------------|");
+printf("\n");
+	}
+	printf("| ");
+	for(j=0;j<9;j++)
+	{
+		if(j==3) printf("| ");
+		 if(j==6) printf("| ");
+	printf("%d ",board[i][j]); 
+	}
+	printf("|");
+	printf("\n");
+}
+printf("|-----------------------|\n");
+}
+void test(int board[9][9])/*²âÊÔÊÇ·ñΪÊý¶À¾ØÕó*/
+{
+	int num[10]={0};
+	int k=0;
+	int i=0,j=0;
+	int a=0,b=0;
+	for(i=0;i<9;i++)
+	{
+		for(j=0;j<9;j++)/*ÑéÖ¤ÐÐ*/
+		{
+			if(board[i][j]!=0&&num[board[i][j]]==0)
+			num[board[i][j]]++;
+			else if(board[i][j]!=0&&num[board[i][j]]!=0)
+			{
+				k++; 
+				printf("False:Invalid initial Sudoku matrix!\n");
+				printf("      The number %d in the col %d has been used!",board[i][j],i);
+			}
+		}
+			for(i=0;i<10;i++)
+			num[i]=0;
+	}
+	if(k==0)/*·ÀÖ¹Êä³öÁ½´Î´íÎó*/
+	{
+		for(i=0;i<9;i++)
+	{
+		for(j=0;j<9;j++)/*ÑéÖ¤ÁÐ*/
+		{
+			if(board[j][i]!=0&&num[board[j][i]]==0)
+			num[board[j][i]]++;
+			else if(board[j][i]!=0&&num[board[j][i]]!=0)
+			{
+				k++; 
+				printf("False:Invalid initial Sudoku matrix!\n");
+				printf("      The number %d in the row %d has been used!",board[j][i],i);
+			}
+		}
+			for(i=0;i<10;i++)
+			num[i]=0;
+	}
+	}
+	if(k==0)/*·ÀÖ¹Êä³öÁ½´Î´íÎó*//*ÑéÖ¤¾ØÕó¿é*/
+	{
+		for(i=1;i<=3;i++)
+		{
+			for(j=1;j<=3;j++)
+			{
+				for(a=(i-1)*3;a<=i*3-1;a++)
+				{
+					for(b=(j-1)*3;b<=j*3-1;b++)
+					{
+					if(board[a][b]!=0&&num[board[a][b]]==0)
+			        num[board[a][b]]++;	
+			        else if(board[a][b]!=0&&num[board[a][b]]!=0)
+			{
+				k++; 
+				printf("False:Invalid initial Sudoku matrix!\n");
+				printf("      The number %d in the block %d has been used!",board[a][b],i*j);
+			}
+					}
+				}
+					for(i=0;i<10;i++)
+			         num[i]=0;
+			}
+		}
+	}
+	if(k==0)/*×îºóÊä³öÕýÈ·*/
+    printf("True:Valid initial Sudoku matrix!");
+}
+int main()
+{
+	int board[9][9] = {{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}};
+print(board);
+test(board);
+return 0; 
+}
+