I’m exceeding time limit, what can I do?
#include <stdio.h>
int main()
{
int t,a,b,c,d,e=0;
scanf ("%d",&t);
while (t!=0)
{
scanf ("%d %d",&a,&b);
for (c=a;c<=b;c++)
{
for (d=2;d<c;d++)
{
if (c%d==0)
{
e++;
break;
}
}
if (e!=1&&c!=1)
{
printf ("%d\n",c);
}
e=0;
}
t=t-1;
printf ("\n");
}
return 0;
}