//Source Code:
#include<stdio.h>
#include<math.h>
int main(){
printf("Floor of 8.91 is: %lf\n",floor(8.91));
//floor(x) - Return largest integer smaller than x
printf("Ceil of 8.91 is: %lf",ceil(8.91));
//ceil(x) - Return smallest integer greater than x
return 0;
}