Go4Expert - May someone help me with my program????

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- - May someone help me with my program???? (http://www.go4expert.com/showthread.php?t=2571)

May someone help me with my program????

May someone help me with my program???? :confused:
It said the program have 2 error in line 12 & 51(as pointed)

Code:

#include<stdio.h>

#include<stdlib.h>

#include<time.h>

/********************Sudoku by Chow Samuel See Chai 5A*******************/

int x,y;

int matrix[9][9], box[9];

char filename[30];

FILE *fp;

void welcome(void);

void rules(void);

void level(void);

void board(char);<------------------error 1

void enter(int);

void check(int);

main()

{

      welcome();

      rules();

}

void welcome()

{

     printf("Welcome to Sudoku Game Version 2.0\n\n");

     printf("Thanks for playing this game!\n\nHope you enjoy the game!\n");

}

void rules()

{

     printf("\nRules to play:\n");

     printf("Enter a numerical digit from 1 through 9 starting with various digits given in some cells.\n");

     printf("Each row, column, and cell must contain only one instance of each numeral.\n");

     printf("Are you ready ? (1 - Yes, 0 - No)\n");

     scanf("%d", &x);

     if(x==1)

         level();

     else

         exit(1);

}

void level()

{

 printf("Which level do you want to play? (1-easy, 2-normal, 3-hard)\n");

 scanf("%d", &y);

 switch(y)

 {



  default:

   printf("Error! Please enter again!\n");

   level();

    fclose(fp);

    }

}

void board(char filename[30])

{   <-------------------------------------------error 2

 int i,j,z;

 fp=fopen(filename,"r");

    if(fp==NULL)

 {

    printf("Cannot open file!\n");

    level();

 }

    while((z=fgetc(fp))!=EOF){

                                                            

         printf("|-|-|-|-|-|-|-|-|-|\n");

         for(i=0;i<9;i++)

         {

               for(j=0;j<=9;j++)

               {

                   z = fgetc(fp);

         

          printf("|%c",z);

                   

                   matrix[i][j] = z;

             

               }                 

         }

    printf("\n");     

    printf("|-|-|-|-|-|-|-|-|-|\n");

    }    

}

void enter(int matrix[9][9])

{

     int a,b,c;

     

     printf("Enter the position that you want to enter numbers: (eg. 1,1)\n");

     scanf("%d,%d", &a,&b);

     

     if(matrix[a][b]==0)

     {

             printf("Wrong entering!\n");

             printf("Please enter the position again!\n");

             enter(matrix);

     }

     

     if(matrix[a][b]!=0)

     {

             printf("Enter the number that you want to put at the position:\n");

             scanf("%d", &c);

             

             matrix[a][b] = c;

             

             check();      

     }

}