周赛277

src/main/java/contest/y2022/m1/week/Solution277.java

@@ -0,0 +1,156 @@
+package contest.y2022.m1.week;
+
+import com.code.leet.entiy.TwoArray;
+
+import javax.jws.soap.SOAPBinding;
+import java.util.*;
+
+/**
+ * @description:
+ * @author: Administrator
+ * @date: 2021/8/22-10:29
+ */
+public class Solution277 {
+    public static void main(String[] args) {
+        Solution277 solution = new Solution277();
+        TwoArray twoArray = new TwoArray("[[2,0,2,2,0],[2,2,2,1,2],[2,2,2,1,2],[1,2,0,2,2],[1,0,2,1,2]]", true);
+        solution.maximumGood(twoArray.getArr());
+    }
+
+    public int countElements(int[] nums) {
+        if (nums.length < 3) {
+            return 0;
+        }
+        Arrays.sort(nums);
+        int count = nums.length - 2;
+        int bef = nums[0];
+        int end = nums[nums.length - 1];
+        for (int i = 1; i < nums.length - 1; i++) {
+            if (nums[i] == bef || nums[i] == end) {
+                count--;
+            }
+        }
+        return count;
+    }
+
+    public int[] rearrangeArray(int[] nums) {
+        int size = nums.length;
+        int[] result = new int[size];
+        Queue<Integer> large = new LinkedList<>();
+        Queue<Integer> small = new LinkedList<>();
+        boolean isLarge = true;
+        int index = 0;
+        for (int num : nums) {
+            if (isLarge) {
+                if (!large.isEmpty()) {
+                    result[index] = large.poll();
+                    index++;
+                    isLarge = false;
+                    if (num > 0) {
+                        large.add(num);
+                    } else {
+                        small.add(num);
+                    }
+                } else {
+                    if (num > 0) {
+                        result[index] = num;
+                        index++;
+                        isLarge = false;
+                    } else {
+                        small.add(num);
+                    }
+                }
+            } else {
+                if (!small.isEmpty()) {
+                    result[index] = small.poll();
+                    index++;
+                    isLarge = true;
+                    if (num > 0) {
+                        large.add(num);
+                    } else {
+                        small.add(num);
+                    }
+                } else {
+                    if (num < 0) {
+                        result[index] = num;
+                        index++;
+                        isLarge = true;
+                    } else {
+                        large.add(num);
+                    }
+                }
+            }
+        }
+        for (int i = index; i < size; i++) {
+            if (isLarge) {
+                result[i] = large.poll();
+                isLarge = false;
+            } else {
+                result[i] = small.poll();
+                isLarge = true;
+            }
+        }
+        return result;
+    }
+
+    public List<Integer> findLonely(int[] nums) {
+        if (nums.length == 0) {
+            return new ArrayList<>();
+        }
+        Arrays.sort(nums);
+        List<Integer> list = new ArrayList<>();
+        for (int i = 0; i < nums.length; i++) {
+            if (i == 0) {
+                if (Math.abs(nums[i] - nums[i + 1]) > 1) {
+                    list.add(nums[i]);
+                }
+            } else if (i == nums.length - 1) {
+                if (Math.abs(nums[i] - nums[i - 1]) > 1) {
+                    list.add(nums[i]);
+                }
+            } else {
+                if (Math.abs(nums[i] - nums[i - 1]) > 1 && Math.abs(nums[i] - nums[i + 1]) > 1) {
+                    list.add(nums[i]);
+                }
+            }
+        }
+        return list;
+    }
+
+    public int maximumGood(int[][] statements) {
+        max = 0;
+        int[] pd = new int[statements.length];
+        Arrays.fill(pd, 2);
+        dfs(statements, pd, 0, 0);
+        return max;
+    }
+
+    int max;
+
+    private void dfs(int[][] statements, int[] pd, int index, int count) {
+        if (index == statements.length) {
+            max = Math.max(max, count);
+            return;
+        }
+        int[] temp = Arrays.copyOf(pd, pd.length);
+        if (temp[index] != 1) {
+            temp[index] = 0;
+            dfs(statements, temp, index + 1, count);
+        }
+        temp = Arrays.copyOf(pd, pd.length);
+        if (temp[index] != 0) {
+            temp[index] = 1;
+            for (int i = 0; i < temp.length; i++) {
+                if (i == index) {
+                    continue;
+                }
+                if (temp[i] == 2) {
+                    temp[i] = statements[index][i];
+                } else if (statements[index][i] != 2 && temp[i] != statements[index][i]) {
+                    return;
+                }
+            }
+            dfs(statements, temp, index + 1, count + 1);
+        }
+    }
+}