code link:https://ide.codingblocks.com/s/89174
Not correct output
see you have to terminate your for loop till i<l but you have done it i<=l and next when l==0 or l==1 then count should not be incremented as 0,1 are not prime numbers.
I have the required changes to your code you can see it:
and try to seive method in this question if your code will give tle on subission.
hlo @cutiecoder
now this code is giving 2 correct test cases but in 1 test case time limit exceed, what to do then?
try using seive method to check whether the number is prime or not.