void main()
{ int i，x，a[ 10]，pos，low，high，mid
Printf ("Please enter data in descending order: \ n");
for(I = 0； I< 10; i++)
{ scanf("%d "，& ampa[I])；
}
Printf ("Please enter the data you want to find:");
scanf("%d "，& ampx)；
pos =- 1；
Low = 0;
Height = 9;
do
{mid = high+low/2;
if(x & gt； A [middle]
? Low = mid+1;
else if(x & lt； A [middle]
? High = medium1;
other
{ pos = mid
? Break;
}
}
while(low & lt； = high);
If (pos! =- 1)
Printf ("subscript position of data: %d", POS);
Else printf ("Not found!" );
}