題目描述

?代碼

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int n1 = scanner.nextInt();for (int t = 0; t < n1; t++) {String string = scanner.next();int n = string.length();char[] result = new char[n];result[0] = string.charAt(0);result[1] = string.charAt(1);int index = 2;for (int i = 2; i < n; i++) {char b1 = result[index - 2];char b2 = result[index - 1];char b3 = string.charAt(i);if (b1 != b2 || b2 != b3) {result[index] = b3;index++;}}for (int i = 3; i < index; i++) {char a1 = result[i - 3];char a2 = result[i - 2];char b1 = result[i - 1];char b2 = result[i];if (a1 == a2 && b1 == b2) {result[i] = '#';}}StringBuilder s = new StringBuilder();for (int i = 0; i < index; i++) {if (result[i] != '#') {s.append(result[i]);}}System.out.println(s);}}

?運行結果

?

總結

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