1 Liner Easy | Java | Explained✅
colors.replaceAll("A{3,}", "AA"): This part of the code uses the replaceAll method to search for substrings of "A" that appear three or more times consecutively
- colors.replaceAll("A{3,}", "AA"): This part of the code uses the replaceAll method to search for substrings of "A" that appear three or more times consecutively and replace them with "AA". In regular expressions, "{3,}" means "three or more occurrences." So, this part of the code is essentially replacing sequences of three or more consecutive "A" characters with "AA" in the string referred to as colors.\n\n- colors.replaceAll("B{3,}", "BB"): Similarly, this part of the code uses replaceAll to search for substrings of "B" that appear three or more times consecutively and replace them with "BB".\n\n- colors.replaceAll("A{3,}", "AA").length(): This part of the code calculates the length of the string after performing the "A" replacement. It counts how many characters are in the modified string after replacing "AAA" with "AA" for each occurrence.\n\n- colors.replaceAll("B{3,}", "BB").length(): This part of the code calculates the length of the string after performing the "B" replacement. It counts how many characters are in the modified string after replacing "BBB" with "BB" for each occurrence.\n\n---\n\n\n- Finally, the code compares the lengths of the two modified strings and checks if the length of the string after replacing "AAA" with "AA" is less than the length of the string after replacing "BBB" with "BB". If this comparison is true, it means that there were more occurrences of "A" sequences replaced with "AA" than "B" sequences replaced with "BB," and the expression returns true. Otherwise, it returns false.\n\n# Code\n```\nclass Solution {\n    public boolean winnerOfGame(String colors) {\n        return colors.replaceAll("A{3,}", "AA").length() < colors.replaceAll("B{3,}", "BB").length();\n    }\n}\n```
['Game Theory', 'Java']