char nextGreatestLetter(char* letters, int lettersSize, char target){ for (int i=0; i<lettersSize; i++) if (letters[i] > target) return letters[i]; return letters[0]; }
char nextGreatestLetter(char* letters, int lettersSize, char target){ for (int i=0; i<lettersSize; i++) if (letters[i] > target) return letters[i]; return letters[0]; }