题解 | #字符串归一化#
字符串归一化
http://www.nowcoder.com/practice/6d5e036defdf408681376a4a9d4930ff
import java.util.*;
public class Main {
public static void solve(String s) {
int[] cnts = new int[128];
char[] arr = s.toCharArray();
for(char ch : arr) {
cnts[ch]++;
}
for(char i = 'a'; i <= 'z'; i++) {
if(cnts[i] < 1) continue;
System.out.print(i);
System.out.print(cnts[i]);
}
System.out.println();
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNextLine()) {
String s = sc.nextLine();
solve(s);
}
}
}