Bigger Is Greater Hackerrank Solution - C

: The algorithm operates in O(1) extra space (in-place modification), making it highly memory efficient.

"dkhc" → next permutation is "kdch" .

| Input | Output | Reason | |--------------|--------------|--------| | "a" | "no answer" | Single char has no next permutation | | "cba" | "no answer" | Already largest | | "abc" | "acb" | Simple swap | | "abcd" | "abdc" | Smallest change | | "ffgg" | "fgfg" | Handles duplicate chars correctly | bigger is greater hackerrank solution c

// Function to swap two characters void swap(char *a, char *b) char temp = *a; *a = *b; *b = temp; : The algorithm operates in O(1) extra space