为什么通不过？why？😬
错误提示：detectAllWords 返回的列表不是正确的大小！
Error prompt: The list returned by detectAllWords is not the correct size!
package zh.codegym.task.task20.task2027;
import java.util.ArrayList;
import java.util.List;
/*
字词搜索
*/
public class Test {
public static void main(String[] args) {
int[][] wordSearch = new int[][]{
{'f', 'd', 'e', 'r', 'l', 'k'},
{'u', 's', 'a', 'm', 'e', 'o'},
{'l', 'n', 'g', 'r', 'o', 'v'},
{'m', 'l', 'p', 'r', 'r', 'h'},
{'p', 'o', 'e', 'e', 'j', 'j'}
};
detectAllWords(wordSearch, "home", "same");
}
public static List<Word> detectAllWords(int[][] wordSearch, String... words) {
ArrayList<Word> result = new ArrayList<>();
int hor = wordSearch[0].length;
int ver = wordSearch.length;
outer:
for (String s : words) {
// Horizontally
for (int i = 0; i < ver; i++) {
StringBuilder sb = new StringBuilder();
for (int j = 0; j < hor; j++)
sb.append((char) wordSearch[i][j]);
String horLine = sb.toString();
if (horLine.contains(s)) {
Word word = new Word(s);
word.setStartPoint(horLine.indexOf(s), i);
word.setEndPoint(horLine.indexOf(s) + s.length() - 1, i);
result.add(word);
continue outer;
}
String horReverse = sb.reverse().toString();
if (horReverse.contains(s)) {
Word word = new Word(s);
word.setStartPoint(hor - horReverse.indexOf(s) - 1, i);
word.setEndPoint(hor - horReverse.indexOf(s) - s.length(), i);
result.add(word);
continue outer;
}
}
// Vertically
for (int i = 0; i < hor; i++) {
StringBuilder sb = new StringBuilder();
for (int[] aCrossword : wordSearch)
sb.append((char) aCrossword[i]);
String horLine = sb.toString();
if (horLine.contains(s)) {
Word word = new Word(s);
word.setStartPoint(i, horLine.indexOf(s));
word.setEndPoint(i, horLine.indexOf(s) + s.length() - 1);
result.add(word);
continue outer;
}
String horReverse = sb.reverse().toString();
if (horReverse.contains(s)) {
Word word = new Word(s);
word.setStartPoint(i, ver - horReverse.indexOf(s) - 1);
word.setEndPoint(i, ver - s.length() - horReverse.indexOf(s));
result.add(word);
continue outer;
}
}
// Diagonally to the right
for (int i = 0; i < ver; i++) {
for (int j = 0; j < hor; j++) {
int iTemp = i;
int jTemp = j;
StringBuilder sb = new StringBuilder();
while (iTemp < ver && jTemp < hor) {
sb.append((char) wordSearch[iTemp][jTemp]);
iTemp++;
jTemp++;
}
String horLine = sb.toString();
if (horLine.contains(s)) {
Word word = new Word(s);
word.setStartPoint(j + horLine.indexOf(s), i + horLine.indexOf(s));
word.setEndPoint(j + horLine.indexOf(s) + s.length() - 1, i + horLine.indexOf(s) + s.length() - 1);
result.add(word);
continue outer;
}
String horReverse = sb.reverse().toString();
if (horReverse.contains(s)) {
Word word = new Word(s);
word.setStartPoint(jTemp - 1 - horReverse.indexOf(s), iTemp - 1 - horReverse.indexOf(s));
word.setEndPoint(jTemp - horReverse.indexOf(s) - s.length(), iTemp - horReverse.indexOf(s) - s.length());
result.add(word);
continue outer;
}
}
}
// Diagonally to the left
for (int i = 0; i < ver; i++) {
for (int j = hor - 1; j >= 0; j--) {
int iTemp = i;
int jTemp = j;
StringBuilder sb = new StringBuilder();
while (iTemp < ver && jTemp >= 0) {
sb.append((char) wordSearch[iTemp][jTemp]);
iTemp++;
jTemp--;
}
String horLine = sb.toString();
if (horLine.contains(s)) {
Word word = new Word(s);
word.setStartPoint(j - horLine.indexOf(s), i + horLine.indexOf(s));
word.setEndPoint(j - horLine.indexOf(s) - s.length() + 1, i + horLine.indexOf(s) + s.length() - 1);
result.add(word);
continue outer;
}
String horReverse = sb.reverse().toString();
if (horReverse.contains(s)) {
Word word = new Word(s);
word.setStartPoint(jTemp + 1 + horReverse.indexOf(s), iTemp - 1 - horReverse.indexOf(s));
word.setEndPoint(jTemp + horReverse.indexOf(s) + s.length(), iTemp - horReverse.indexOf(s) - s.length());
result.add(word);
continue outer;
}
}
}
}
System.out.println(result);
System.out.println(result.size());
return result;
}
public static class Word {
private String text;
private int startX;
private int startY;
private int endX;
private int endY;
public Word(String text) {
this.text = text;
}
public void setStartPoint(int i, int j) {
startX = i;
startY = j;
}
public void setEndPoint(int i, int j) {
endX = i;
endY = j;
}
@Override
public String toString() {
return String.format("%s - (%d, %d) - (%d, %d)", text, startX, startY, endX, endY);
}
}
}