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| public class Solution {
public boolean isValidSudoku(char[][] board) {
int[][] rows = new int[9][9];
int[][] cols = new int[9][9];
int[][][] subBoard = new int[3][3][9];
for (int i = 0; i < 9; i++) {
for (int j = 0; j < 9; j++) {
char c = board[i][j];
if (c != '.') {
int value = c - '0';
int index = value - 1;
rows[i][index]++;
cols[j][index]++;
subBoard[i / 3][j / 3][index]++;
if (rows[i][index] > 1 || cols[j][index] > 1 || subBoard[i / 3][j / 3][index] > 1) {
return false;
}
}
}
}
return true;
}
}
class TestMain {
public static void main(String[] args) {
TestUtils.runTestCases(TestCase.class);
}
public static class TestCase {
public static boolean testCase1() {
char[][] board = {
{ '5', '3', '.', '.', '7', '.', '.', '.', '.' },
{ '6', '.', '.', '1', '9', '5', '.', '.', '.' },
{ '.', '9', '8', '.', '.', '.', '.', '6', '.' },
{ '8', '.', '.', '.', '6', '.', '.', '.', '3' },
{ '4', '.', '.', '8', '.', '3', '.', '.', '1' },
{ '7', '.', '.', '.', '2', '.', '.', '.', '6' },
{ '.', '6', '.', '.', '.', '.', '2', '8', '.' },
{ '.', '.', '.', '4', '1', '9', '.', '.', '5' },
{ '.', '.', '.', '.', '8', '.', '.', '7', '9' }
};
boolean result = new Solution().isValidSudoku(board);
boolean expect = true;
return TestUtils.check(result, expect);
}
public static boolean testCase2() {
char[][] board = {
{ '8', '3', '.', '.', '7', '.', '.', '.', '.' },
{ '6', '.', '.', '1', '9', '5', '.', '.', '.' },
{ '.', '9', '8', '.', '.', '.', '.', '6', '.' },
{ '8', '.', '.', '.', '6', '.', '.', '.', '3' },
{ '4', '.', '.', '8', '.', '3', '.', '.', '1' },
{ '7', '.', '.', '.', '2', '.', '.', '.', '6' },
{ '.', '6', '.', '.', '.', '.', '2', '8', '.' },
{ '.', '.', '.', '4', '1', '9', '.', '.', '5' },
{ '.', '.', '.', '.', '8', '.', '.', '7', '9' }
};
boolean result = new Solution().isValidSudoku(board);
boolean expect = false;
return TestUtils.check(result, expect);
}
}
public static class TestUtils {
public static boolean check(Object result, Object expect) {
result = normalizeObject(result);
expect = normalizeObject(expect);
boolean ok = java.util.Objects.deepEquals(result, expect);
printCheck(toString(result), toString(expect), ok);
return ok;
}
public static boolean check(Object result, String expect) {
boolean ok = java.util.Objects.equals(normalizeString(toString(result)),
normalizeString(toString(expect)));
printCheck(normalizeString(toString(result)), normalizeString(toString(expect)), ok);
return ok;
}
private static Object normalizeObject(Object o) {
if (o instanceof java.util.List) {
java.util.List<?> list = (java.util.List<?>) o;
if (list != null && !list.isEmpty() && list.get(0) instanceof java.util.List) {
o = toArrays(list);
} else {
o = toArray(list);
}
}
return o;
}
private static String toString(Object o) {
if (o instanceof Object[]) {
return java.util.Arrays.deepToString((Object[]) o);
} else if (o instanceof int[]) {
return java.util.Arrays.toString((int[]) o);
} else if (o instanceof double[]) {
return java.util.Arrays.toString((double[]) o);
} else if (o instanceof char[]) {
return java.util.Arrays.toString((char[]) o);
} else {
return java.util.Objects.toString(o);
}
}
private static String normalizeString(String s) {
boolean isArray = (s.startsWith("{") && s.endsWith("}")) || (s.startsWith("[") && s.endsWith("]"));
if (isArray) {
s = s.replace(" ", "")
.replace("'", "")
.replace("\"", "")
.replace("{", "[")
.replace("}", "]");
}
return s;
}
private static void printCheck(String result, String expect, boolean ok) {
System.out.println("result: " + result);
System.out.println("expect: " + expect);
System.out.println();
if (ok) {
System.out.println("比较结果为: 正确(right)");
} else {
System.out.println("比较结果为: 错误(error)");
}
}
public static void runTestCases(Class<?> clazz) {
java.lang.reflect.Method[] methods = clazz.getDeclaredMethods();
java.util.Arrays.sort(methods, (o1, o2) -> {
return o1.getName().compareTo(o2.getName());
});
for (java.lang.reflect.Method method : methods) {
if (method.getName().startsWith("test")) {
System.out.println(String.format("--- %s --->", method.getName()));
Object object = null;
try {
object = method.invoke(null);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(String.format("<--- %s ---", method.getName()));
if (object instanceof Boolean) {
Boolean ok = (Boolean) object;
if (!ok) {
break;
}
} else {
throw new RuntimeException(String.format("测试用例方法%s的返回值需要为布尔类型", method.getName()));
}
}
}
}
public static Object[] toArray(Object o) {
java.util.List<?> list = (java.util.List<?>) o;
if (list == null || list.isEmpty()) {
return new Object[0];
}
return list.toArray();
}
public static Object[][] toArrays(Object o) {
java.util.List<?> list = (java.util.List<?>) o;
if (list == null || list.isEmpty()) {
return new Object[0][0];
}
Object[][] arrays = new Object[list.size()][];
for (int i = 0; i < list.size(); i++) {
arrays[i] = toArray(list.get(i));
}
return arrays;
}
@SuppressWarnings("unchecked")
public static <T> T[] genArray(Class<T> clazz, int length) {
return (T[]) java.lang.reflect.Array.newInstance(clazz, length);
}
@SuppressWarnings("unchecked")
public static <T> T[][] genArrays(Class<T> clazz, int rows, int cols) {
T[] array = genArray(clazz, 0);
T[][] arrays = (T[][]) genArray(array.getClass(), rows);
for (int i = 0; i < arrays.length; i++) {
arrays[i] = genArray(clazz, cols);
}
return arrays;
}
public static <T> T[] toArray(java.util.List<T> list, Class<T> clazz) {
if (list == null || list.isEmpty()) {
return genArray(clazz, 0);
}
T[] array = genArray(clazz, list.size());
for (int i = 0; i < array.length; i++) {
array[i] = list.get(i);
}
return array;
}
public static <T> T[][] toArrays(java.util.List<java.util.List<T>> lists, Class<T> clazz) {
if (lists == null || lists.isEmpty()) {
return genArrays(clazz, 0, 0);
}
T[][] arrays = genArrays(clazz, lists.size(), 0);
for (int i = 0; i < lists.size(); i++) {
arrays[i] = toArray(lists.get(i), clazz);
}
return arrays;
}
public static <T> java.util.List<T> toList(T[] array) {
return java.util.Arrays.asList(array);
}
public static <T> java.util.List<java.util.List<T>> toLists(T[][] arrays) {
java.util.List<java.util.List<T>> lists = new java.util.ArrayList<>();
for (T[] array : arrays) {
lists.add(toList(array));
}
return lists;
}
}
}
|
