Counting sort getting error

#1
#2

Start the loop from i=0 in for(ll i=1;i<=largest;i++)

#3

still getting error

Dang! You couldn’t score a perfect 100 because you failed one or more testcases. This means that your program didn’t account for all input cases (did you account for negative numbers, for example?)

#4

Your input array is small. Look at the constraints given in question