思路:
利用java 特性,将数字从1 一直加到n,全部放到String中,然后依次对strring扫描每一位,使其carr[str.charAt(i)-'0']++;
最后输出carr[i],即可。
13
string=12345678910111213
carr[1]++、carr[2]++、carr[3]++、、、、carr[1]++、carr[1]++、carr[1]++、carr[2]++、carr[1]++、carr[3]++
AC Code:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
int n = sc.nextInt();
while (n-- != 0) {
int a = sc.nextInt();
String str = "";
int[] carr = new int[10];
for (int i = 1; i <= a; i++)
str = str + i;
for (int i = 0; i < str.length(); i++) {
carr[str.charAt(i) - '0']++;
}
for (int i = 0; i < 9; i++) {
System.out.print(carr[i] + " ");
}
System.out.println(carr[9]);
}
}
}
}