Case 1 is not passed

can you please tell me which case is not passed , as all other cases is passed except 1

@1999atrijsharma
sort the string too first
sort(s, s+ strlen(s));

in question it is mentioned that we have to get the maximum occuring char of a String then why we have to sort

Sample input: abc
your output: a
Correct output: c

Better approach:
1.Declare an Array of 26 size to store the Freq of each character.

2.Each time any character is encountered increment its corresponding freq at that index.

3.Declare a max variable and put a loop on filled array.

4.Update the max and character accordingly.

refer to this