下列程序的功能是：将大于整数m且紧靠m的k个素数存入数组xx中。请编写函数num（int m, int k, int x

下列程序的功能是：将大于整数m且紧靠m的k个素数存入数组xx中。请编写函数num(int m, int k, int xx[])实现程序的要求，最后调用函数readwriteDAT() 把结果输出到文件out.dat中。例如：若输入“17, 5”，则应输出“19, 23, 29, 31, 37”。注意：部分源程序已给出。请勿改动主函数main()和函数readwriteDAT()的内容。#include <conio.h>#include <stdio.h>void readwriteDat();void num(int m, int k, int xx[]){ }main(){ int m, n, xx[1000]; printf(" Please enter two integers:"); scanf("%d%d", &m, &n); num(m, n, xx); for (m=0; m<n; m++) printf("%d ", xx[m]); printf(" "); readwriteDat();}void readwriteDat(){ int m, n, xx[1000], i; FILE *rf, *wf; rf = fopen("in.dat", "r"); wf = fopen("out.dat", "w"); for (i=0; i<10; i++) { fscanf(rf, "%d %d", &m, &n); num(m, n, xx); for (m=0; m<n; m++) fprintf(wf, "%d ", xx[m]); fprintf(wf, " "); } fclose(rf); fclose(wf);}