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1016. 部分A+B (15)

正整数A的“DA(为1位整数)部分”定义为由A中所有DA组成的新整数PA。例如:给定A = 3862767,DA = 6,则A的“6部分”PA是66,因为A中有2个6。

现给定A、DA、B、DB,请编写程序计算PA + PB

输入格式:

输入在一行中依次给出A、DA、B、DB,中间以空格分隔,其中0 < A, B < 1010

输出格式:

在一行中输出PA + PB的值。

输入样例1:
3862767 6 13530293 3
输出样例1:
399
输入样例2:
3862767 1 13530293 8
输出样例2:
0
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner cin = new Scanner(System.in);
		int A = cin.nextInt();
		int DA = cin.nextInt();
		int B = cin.nextInt();
		int DB = cin.nextInt();
		int count_A = 0;
		int count_B = 0;
		int res_A = 0;
		int res_B = 0;
		while (A != 0) {
			if (DA == A % 10) {
				count_A++;
			}
			A /= 10;
		}
		while (B != 0) {
			if (DB == B % 10) {
				count_B++;
			}
			B /= 10;
		}
		for (int i = 0; i < count_A; i++) {
			res_A = res_A * 10 + DA;
		}
		for (int i = 0; i < count_B; i++) {
			res_B = res_B * 10 + DB;
		}
		System.out.println(res_A + res_B);
	}
}