/**

* @author li_zhe

* 该题题意不清楚，题意：当前为把上一个数字读一遍的结果，相同数字合并一起

*/

public class CountandSay {

public String countAndSay(int n) {

StringBuilder sb1 = new StringBuilder("1");

StringBuilder sb2 = new StringBuilder();

n--;

while(n-- > 0){

int count = 1;

for(int i = 0; i < sb1.length(); i++){

if(i + 1 < sb1.length() && sb1.charAt(i) == sb1.charAt(i + 1)){

count++; continue;

}

sb2.append(String.valueOf(count));

sb2.append(sb1.charAt(i));

count = 1;

}

sb1 = sb2;

sb2 = new StringBuilder();

}

return sb1.toString();

}

public static void main(String[] args) {

CountandSay count = new CountandSay();

System.out.println(count.countAndSay(1));

System.out.println(count.countAndSay(2));

System.out.println(count.countAndSay(3));

System.out.println(count.countAndSay(5));

System.out.println(count.countAndSay(10));

}

}