ADD file via upload

2.c

@@ -0,0 +1,55 @@
+#include<stdio.h>
+#include <time.h>
+#include <stdlib.h>
+int main()
+{
+	int board[9][9]={{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0}};
+				
+	int flag[9][9]={{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0},
+				{0,0,0,0,0,0,0,0,0}};
+				
+	srand(time(NULL));
+	int i,j,p,num;
+	
+	for(i=0;i<9;i++)
+	{
+		for(j=0;j<3;j++)
+		{
+			do{
+				p=rand()%10;
+			}while(p>=9 || board[i][p]!=0);
+			do{
+				num=rand()%10;
+			}while(num==0 || flag[i][num]==1);
+			board[i][p]=num;
+			flag[i][num]=1;
+		}
+	}
+	
+	for(i=0;i<9;i++)
+	{
+		if(i%3==0) printf("|-----------------------|\n");
+		for(j=0;j<9;j++)
+		{
+			if(j%3==0) printf(j==0?"|":" |");
+			printf(" %d",board[i][j]);
+		}
+		printf(" |\n");
+	}
+	printf("|-----------------------|\n");
+}