第四届蓝桥杯 马虎的算式

public class 马虎的算式 {
public static void main(String[] args) {
int n = 0;
for (int a = 1; a < 10; a++) {
for (int b = 1; b < 10; b++) {
for (int c = 1; c < 10; c++) {
for (int d = 1; d < 10; d++) {
for (int e = 1; e < 10; e++) {
if (a != b && a != c && a != d && a != e && b != c
&& b != d && b != e && c != d && c != e
&& d != e) {
if ((a * 10 + b) * (c * 100 + d * 10 + e) == (a
* 100 + d * 10 + b)
* (c * 10 + e)) {
++n;
}
}
}
}
}
}
}
System.out.println(n);
}
}