42 lines
956 B
Java
42 lines
956 B
Java
|
import java.util.*;
|
||
|
|
|
||
|
|
public interface Recursion {
|
||
|
|
public static void main(String[] args) {
|
||
|
|
|
||
|
|
}
|
||
|
|
private boolean findSolutions(int n) {
|
||
|
|
// check if solution
|
||
|
|
boolean foundSolution = false;
|
||
|
|
if(foundSolution) {
|
||
|
|
displaySolution();
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
// guesses.
|
||
|
|
List<String> values = new ArrayList<String>();
|
||
|
|
for( String value : values ) {
|
||
|
|
if( isValid(value, n) ) {
|
||
|
|
applyValue(value, n);
|
||
|
|
if( findSolutions(n - 1) ) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
removeValue(value, n);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
private boolean isValid(String value, int n) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
private void removeValue(String value, int n) {
|
||
|
|
|
||
|
|
}
|
||
|
|
private void applyValue(String value, int n) {
|
||
|
|
|
||
|
|
}
|
||
|
|
private void displaySolution() {
|
||
|
|
System.out.println();
|
||
|
|
}
|
||
|
|
}
|