解题思路:
注意事项:
A1 = “A”
A2 = “ABA”
A3 = “ABACABA”
A4 = “ABACABADABACABA”
可以等式为
A1 = “A”
A2 = “A1BA1”
A3 = “A2CA2”
A4 = “A4 DA4 ”
参考代码:
Scanner scanner=new Scanner(System.in);
int c=scanner.nextInt();
String bString="";
String []arr=new String[26];
for (int i = 0; i < c; i++) //第一个循环是循环Ac{
for (int j = 0; j < arr.length; j++) //第二个是循环A(c-1){
arr[j]=String.valueOf((char)('A'+j));//转换字符串
}bString=bString+arr[i]+bString;
}
System.out.println(bString);
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