解题思路:
见代码注释
注意事项:
参考代码:
import java.util.Scanner; public class C1791 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.hasNext()) { char[] chsA = sc.next().toCharArray(), chsB = sc.next().toCharArray(); boolean flagAB = F(chsA, chsB), flagBA = F(chsB, chsA); if(flagAB && flagBA) System.out.println("a==b"); else if(flagAB && !flagBA) System.out.println("a>=b"); else if(!flagAB && flagBA) System.out.println("a<=b"); else System.out.println("a!=b"); } sc.close(); } //a可以通过删除或交换字符变为b private static boolean F(char[] chsA, char[] chsB){ int lenA = chsA.length, lenB = chsB.length; //1. 若a的长度小于b, 无法变为b if(lenA < lenB) return false; //2. a的长度大于等于b, 循环b的字符, 并从a中往后寻找相同的字符; 若找不到, 则返回false for(int i = 0; i < lenB; i++){ boolean isMatch = false; for(int j = i; j < lenA; j++){ if(chsB[i] == chsA[j]){ isMatch = true; if(i != j){//a和b相同的字符不在相同位置上, 则进行交换 char temp = chsA[i]; chsA[i] = chsA[j]; chsA[j] = temp; } break; } } if(!isMatch){ return false; } } return true; } }
0.0分
0 人评分