float myfun(FILE *fp);

int main(int argc, char *argv[]) {
	int i,p[100],res,p2[100],a,sumtest=0;
	float mo,motest;
	FILE *fp;
	FILE *fp2;
	fp=fopen("testBfile1.dat","rb");
	fp2=fopen("testBfile2.txt","r+");
	for (i=1;i<=100;i=i+1){
		p[i]=i+100;
		sumtest=sumtest+p[i];
		//bazw ton pinaka 101-200 se txt file(no reason)
	/*	fprintf(fp2,"%d",p[i]);
		printf("p[%d]=%d\n",i,p[i]);
		fscanf(fp2,"%d",&p[i]);
		*/
	}
	//grafw ton pinaka sto fp
	fwrite(p,sizeof(int),100,fp);
	//bazw oti exei to dat ston p2
	fread(p2,sizeof(int),100,fp);

	//printarw na dw ean egine swsta to binary file
	for (i=1;i<=100;i=i+1){
		printf("p2[%d]=%d\n",i,p2[i]);
	}
	motest=(float)sumtest/100;
	printf("motets=%f\n",motest);
	mo=myfun(fp);
	printf("MO=%f\n",mo);
	fclose(fp);
	fclose(fp2);
	system("pause");
	return 0;
}

float myfun(FILE *fp){
	float mo;
	int sum=0,a[100],i;
	fread(a,sizeof(int),100,fp);
	for (i=1;i<=100;i=i+1){
		sum=sum+a[i];
	}
	mo=(float)sum/100;
	return(mo);

}