Please the code must be in c program Complete the two functions rotate_right and sudoku_checker according to the specifications given in the associated comments.NOTES: the given starter code includes a display function and a function which reads a board from a file. As given, the main program attempts to read a 9x9 board from an input file given on the command line" ```c#include /* * TODO * func: rotate_right * desc: populates 9x9 2D array dest so that it is * the "90-degree clockwise/right" rotation of * given * 9x9 2D array src. * Imagine turning a square photo 90 degrees * clockwise. * Examples: * given file bl_rot.txt is the 90-degree right * rotation * of bl.txt */void rotate_right(int src[9][9], int dest[9][9]) {}/** * TODO * func: sudoku_checker * desc: takes a 9x9 matrix of integers and * "checks" all 27 "entities": * - 9 rows * - 9 columns * - 9 3x3 boxes * return value: Number of the 27 entities that * are "ok". Thus if the entire board is * legal, 27 is returned. * NOT SIMPLY 0/1 * NOTE: cannot assume that all entries in 2D array * are * in the range 1..9 */int sudoku_checker(int board[9][9]) {}/** * func: disp_board * desc: simple function to display a 9x9 sudoku * board */void disp_board(int board[9][9]) { printf("\n"); for(i=0; i<9; i++) { for(j=0; j<9; j++) { if(j==2 || j==5) printf("%2d | ", board[i][j]); else printf("%2d ", board[i][j]); } printf("\n"); if(i==2 || i==5) printf("----------------------------\n"); } printf("\n");}/* * func: read_board * desc: utility function which attempts to open the * file specified by the string filename and read * 81 integers from it to populate the 2D array * board[][]. * * return value: 1 for success; 0 for failure */int read_board(char *filename, int board[9][9]) { FILE *fp; int i, j; ```c// setup to take a file containing a board as a cmd-line// argument.// // e.g. : ./a.out b1.txtif (argc == 2) { printf("reading board from file '%s'...\n", argv[1]); if (!read_board(argv[1], b)) { printf("reading board failed...goodbye\n"); return 0; } else { printf("success\n"); } disp_board(b);} else { printf("No filename specified...maybe we had different plans...\n");}return 0;}#endif```### ExplanationThis code snippet is written in C and demonstrates how to process command-line input. It specifically looks for a file that contains a "board" and reads it.- **Command-line Argument Handling**: The program checks if exactly two command-line arguments are passed, which include the program name and the filename containing the board.- **Reading from File**: If the arguments are correct, it attempts to read the board from the specified file using a function `read_board`.- **Status Messages**: The program prints status messages to indicate if it was successful or not in reading the board.- **Display Function**: If successful, it displays the board with the function `disp_board`.- **Error Handling**: If no filename is specified, it outputs a message indicating that no filename was provided.- **Return Values**: The program returns 0 in either case, indicating the end of execution.This code is a simple demonstration of file handling, command-line argument processing, and error checking typical in C programming.

Coded using C language. #include <stdio.h> void rotate_right(int src[9][9], int dest[9][9]) { for(int j = 0; j < 9; j++){ int k = 0; for(int i = 8; i >= 0; i--){ dest[j][k] = src[i][j]; k = k + 1; } } printf(" The rotated matrix is \n"); printf("\n"); for(int i = 0; i < 9; i++){ for(int j = 0; j < 9; j++){ printf(" %d ", dest[i][j]); } printf("\n"); }} int sudoku_checker(int board[9][9]) { int count = 0; int i = 0; /* checker for 3*3 boards */ while(i < 9){ int a[9] = {0,0,0,0,0,0,0,0,0}; for(int k = i; k< i + 3; k++){ for(int j = 0; j < 3; j++){ if(a[board[k][j] - 1] > 0){ continue; } else{ a[board[k][j] - 1] = 1; } } } count = count + 1; for(int s = 0; s<9; s++){ if(a[s] > 1 || a[s] == 0){ count = count - 1; break; } } int b[9] = {0,0,0,0,0,0,0,0,0}; for(int k = i; k< i + 3; k++){ for(int j = 3; j < 6; j++){ if(b[board[k][j] - 1] > 0){ continue; } else{ b[board[k][j] - 1] = 1; } } } count = count + 1; for(int s = 0; s<9; s++){ if(b[s] > 1 || b[s] == 0){ count = count - 1; break; } } int c[9] = {0,0,0,0,0,0,0,0,0}; for(int k = i; k < i + 3; k++){ for(int j = 6; j < 9; j++){ if(c[board[k][j] - 1] > 0){ continue; } else{ c[board[k][j] - 1] = 1; } } } count = count + 1; for(int s = 0; s<9; s++){ if(c[s] > 1 || c[s] == 0){ count = count - 1; break; } } i = i + 3;} /* checker for 9 rows and 9 columns */ for(int i = 0; i < 9; i++){ int d[9] = {0,0,0,0,0,0,0,0,0}; for(int j = 0; j < 9; j++){ if(d[board[i][j] - 1] > 0){ continue; } else{ d[board[i][j] - 1] = 1; } } count = count + 1; for(int k = 0; k < 9; k++){ if(d[k] == 0){ count = count - 1; break; } } int e[9] = {0,0,0,0,0,0,0,0,0}; for(int j = 0; j < 9; j++){ if(e[board[j][i] - 1] > 0){ continue; } else{ e[board[j][i] - 1] = 1; } } count = count + 1; for(int k = 0; k < 9; k++){ if(e[k] == 0){ count = count - 1; break; } } } printf(" The sudoku legal count %d", count); return count; } void disp_board(int board[9][9]) { int i, j; printf("\n"); for(i=0; i<9; i++) { for(j=0; j<9; j++) { if(j==2 || j==5) printf("%2d |", board[i][j]); else printf("%2d ", board[i][j]); } printf("\n"); if(i==2 || i==5) printf("-----------------------------\n"); } printf("\n"); } int read_board(char *filename, int board[9][9]) { FILE *fp; int i, j; int x; fp = fopen(filename, "r"); if(fp==NULL) return 0; // failed to open file for(i=0; i<9; i++) { for(j=0; j<9; j++) { if(fscanf(fp, "%d", &x) != 1){ fclose(fp); return 0; } else board[i][j] = x; } } return 1;} #ifndef FUNCS_ONLY // your testing code down here... int main(int argc, char *argv[]) { int b[9][9]; // setup to take a file containing a board as a cmd-line // argument. // // e.g. : ./a.out b1.txt if(argc==2) { printf("reading board from file '%s'...\n", argv[1]); if(!read_board(argv[1], b)) { printf("reading board failed...goodbye\n"); return 0; } else { printf("success\n"); } disp_board(b); } else { printf("No filename specified...maybe we had different plans...\n"); } return 0;} #endif