linear serach with large and small,addition,factorial

#include<stdio.h>
#include<conio.h>
#include<dos.h>
main()
{
int a[9],i,j,k,l=1,large=0,small=a[0],b;
int f=1,d,z,c,v,x,n,t,y,u,o,p;
clrscr();
printf("please wait.......\n");
for(u=0;u<1;u++)
{
delay(5000);                                    //delay for enter 10 number
printf("\t\t\t\ENTER 10 NUMBER\n");
}
//printf("\t\t\tenter 2 number\n");
for(i=0;i<9;i++)
{
printf("\n\Enter %d number",i);
scanf("%d",&a[i]);
}
printf("please wait....\n");
for(t=0;t<1;t++)
{
delay(1000);                              //delay for external number
printf("enter a external number\n");     //external number
scanf("%d\n",&k);
}
for(i=0;i<9;i++)
{
if(a[i]>large)                  //large
large=a[i];
if(a[i]<small)                  //small
small=a[i];
j=large+small;   //addition of large and small
if(a[i]==k)
printf("\nsuccess\n");          //success
if(a[i!=k])
printf("\nunsuccess\n");       //unsuccess
}
printf("THE GIVEN NUMBER IS\n");
if(j%2==0)
printf("even number\n");            //even number
else
printf("odd number\n");  //odd number
printf("===========================================\n");
if(j>0)
printf("positive number\n");      //positibe number
else
printf("negative number\n");      // negative number
printf("===========================================\n");

for(b=1;b<=j;b++)
{                                 //factorial
f=f*b;
}
for(z=0;z<1;z++)
{
delay(2000);                                         //delay for lrage and small
printf("\t\t\tlargest number is %d\n",large);        //print large
printf("\t\t\tsmallest number is %d\n",small);       //print small
//delay(1000);
}
for(x=0;x<1;x++)
{
delay(1000);                                                   //delay for line
printf("===========================================\n");
}
for(c=0;c<1;c++)
{
delay(1000);                                    //delay for addition
printf("addition of LARGE and SMALL NUMBER [%d][%d]\nanswer is %d\n",large,small,j);
printf("============================================\n");
}
for(v=0;v<1;v++)
{                                        //delay for factorial
delay(1000);
printf("FACTORIAL OF NUNBER IS %d",f);
}
for(d=0;d<2;d++)
{
delay(100);                  //delay for what is this
printf("\nwhat is this........\n");
delay(1000);
}
for(y=0;y<1;y++)
{
delay(1000);
printf("rhythm correct\n");                    //rhythm correct
}
for(n=0;n<2;n++)
{
delay(1000);                           //delay for end of process
printf("end of process\t\t\t");
}
printf("\n\a\a\a\a PRESS ENTER");
getch();
return 0;
}