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ishaadX · Jun 11, 2019 · 1adbf87 · 1adbf87
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diff --git a/docs/notes/Leetcode 题解 - 贪心思想.md b/docs/notes/Leetcode 题解 - 贪心思想.md
@@ -2,14 +2,14 @@
 * [1. 分配饼干](#1-分配饼干)
 * [2. 不重叠的区间个数](#2-不重叠的区间个数)
 * [3. 投飞镖刺破气球](#3-投飞镖刺破气球)
-* [3. 根据身高和序号重组队列](#3-根据身高和序号重组队列)
-* [4. 买卖股票最大的收益](#4-买卖股票最大的收益)
-* [5. 买卖股票的最大收益 II](#5-买卖股票的最大收益-ii)
-* [6. 种植花朵](#6-种植花朵)
-* [7. 判断是否为子序列](#7-判断是否为子序列)
-* [8. 修改一个数成为非递减数组](#8-修改一个数成为非递减数组)
-* [9. 子数组最大的和](#9-子数组最大的和)
-* [10. 分隔字符串使同种字符出现在一起](#10-分隔字符串使同种字符出现在一起)
+* [4. 根据身高和序号重组队列](#4-根据身高和序号重组队列)
+* [5. 买卖股票最大的收益](#5-买卖股票最大的收益)
+* [6. 买卖股票的最大收益 II](#6-买卖股票的最大收益-ii)
+* [7. 种植花朵](#7-种植花朵)
+* [8. 判断是否为子序列](#8-判断是否为子序列)
+* [9. 修改一个数成为非递减数组](#9-修改一个数成为非递减数组)
+* [10. 子数组最大的和](#10-子数组最大的和)
+* [11. 分隔字符串使同种字符出现在一起](#11-分隔字符串使同种字符出现在一起)
 <!-- GFM-TOC -->
 
 
@@ -78,18 +78,18 @@ Explanation: You don't need to remove any of the intervals since they're already
 按区间的结尾进行排序，每次选择结尾最小，并且和前一个区间不重叠的区间。
 
 ```java
-public int eraseOverlapIntervals(Interval[] intervals) {
+public int eraseOverlapIntervals(int[][] intervals) {
     if (intervals.length == 0) {
         return 0;
     }
-    Arrays.sort(intervals, Comparator.comparingInt(o -> o.end));
+    Arrays.sort(intervals, Comparator.comparingInt(o -> o[1]));
     int cnt = 1;
-    int end = intervals[0].end;
+    int end = intervals[0][1];
     for (int i = 1; i < intervals.length; i++) {
-        if (intervals[i].start < end) {
+        if (intervals[i][0] < end) {
             continue;
         }
-        end = intervals[i].end;
+        end = intervals[i][1];
         cnt++;
     }
     return intervals.length - cnt;
@@ -99,10 +99,10 @@ public int eraseOverlapIntervals(Interval[] intervals) {
 使用 lambda 表示式创建 Comparator 会导致算法运行时间过长，如果注重运行时间，可以修改为普通创建 Comparator 语句：
 
 ```java
-Arrays.sort(intervals, new Comparator<Interval>() {
+Arrays.sort(intervals, new Comparator<int[]>() {
     @Override
-    public int compare(Interval o1, Interval o2) {
-        return o1.end - o2.end;
+    public int compare(int[] o1, int[] o2) {
+        return o1[1] - o2[1];
     }
 });
 ```
@@ -141,7 +141,7 @@ public int findMinArrowShots(int[][] points) {
 }
 ```
 
-# 3. 根据身高和序号重组队列
+# 4. 根据身高和序号重组队列
 
 [406. Queue Reconstruction by Height(Medium)](https://leetcode.com/problems/queue-reconstruction-by-height/description/)
 
@@ -173,7 +173,7 @@ public int[][] reconstructQueue(int[][] people) {
 }
 ```
 
-# 4. 买卖股票最大的收益
+# 5. 买卖股票最大的收益
 
 [121. Best Time to Buy and Sell Stock (Easy)](https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/)
 
@@ -196,7 +196,7 @@ public int maxProfit(int[] prices) {
 ```
 
 
-# 5. 买卖股票的最大收益 II
+# 6. 买卖股票的最大收益 II
 
 [122. Best Time to Buy and Sell Stock II (Easy)](https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/description/)
 
@@ -217,7 +217,7 @@ public int maxProfit(int[] prices) {
 ```
 
 
-# 6. 种植花朵
+# 7. 种植花朵
 
 [605. Can Place Flowers (Easy)](https://leetcode.com/problems/can-place-flowers/description/)
 
@@ -247,7 +247,7 @@ public boolean canPlaceFlowers(int[] flowerbed, int n) {
 }
 ```
 
-# 7. 判断是否为子序列
+# 8. 判断是否为子序列
 
 [392. Is Subsequence (Medium)](https://leetcode.com/problems/is-subsequence/description/)
 
@@ -269,7 +269,7 @@ public boolean isSubsequence(String s, String t) {
 }
 ```
 
-# 8. 修改一个数成为非递减数组
+# 9. 修改一个数成为非递减数组
 
 [665. Non-decreasing Array (Easy)](https://leetcode.com/problems/non-decreasing-array/description/)
 
@@ -303,7 +303,7 @@ public boolean checkPossibility(int[] nums) {
 
 
 
-# 9. 子数组最大的和
+# 10. 子数组最大的和
 
 [53. Maximum Subarray (Easy)](https://leetcode.com/problems/maximum-subarray/description/)
 
@@ -327,7 +327,7 @@ public int maxSubArray(int[] nums) {
 }
 ```
 
-# 10. 分隔字符串使同种字符出现在一起
+# 11. 分隔字符串使同种字符出现在一起
 
 [763. Partition Labels (Medium)](https://leetcode.com/problems/partition-labels/description/)
 

diff --git a/notes/Leetcode 题解 - 贪心思想.md b/notes/Leetcode 题解 - 贪心思想.md
@@ -2,14 +2,14 @@
 * [1. 分配饼干](#1-分配饼干)
 * [2. 不重叠的区间个数](#2-不重叠的区间个数)
 * [3. 投飞镖刺破气球](#3-投飞镖刺破气球)
-* [3. 根据身高和序号重组队列](#3-根据身高和序号重组队列)
-* [4. 买卖股票最大的收益](#4-买卖股票最大的收益)
-* [5. 买卖股票的最大收益 II](#5-买卖股票的最大收益-ii)
-* [6. 种植花朵](#6-种植花朵)
-* [7. 判断是否为子序列](#7-判断是否为子序列)
-* [8. 修改一个数成为非递减数组](#8-修改一个数成为非递减数组)
-* [9. 子数组最大的和](#9-子数组最大的和)
-* [10. 分隔字符串使同种字符出现在一起](#10-分隔字符串使同种字符出现在一起)
+* [4. 根据身高和序号重组队列](#4-根据身高和序号重组队列)
+* [5. 买卖股票最大的收益](#5-买卖股票最大的收益)
+* [6. 买卖股票的最大收益 II](#6-买卖股票的最大收益-ii)
+* [7. 种植花朵](#7-种植花朵)
+* [8. 判断是否为子序列](#8-判断是否为子序列)
+* [9. 修改一个数成为非递减数组](#9-修改一个数成为非递减数组)
+* [10. 子数组最大的和](#10-子数组最大的和)
+* [11. 分隔字符串使同种字符出现在一起](#11-分隔字符串使同种字符出现在一起)
 <!-- GFM-TOC -->
 
 
@@ -78,18 +78,18 @@ Explanation: You don't need to remove any of the intervals since they're already
 按区间的结尾进行排序，每次选择结尾最小，并且和前一个区间不重叠的区间。
 
 ```java
-public int eraseOverlapIntervals(Interval[] intervals) {
+public int eraseOverlapIntervals(int[][] intervals) {
     if (intervals.length == 0) {
         return 0;
     }
-    Arrays.sort(intervals, Comparator.comparingInt(o -> o.end));
+    Arrays.sort(intervals, Comparator.comparingInt(o -> o[1]));
     int cnt = 1;
-    int end = intervals[0].end;
+    int end = intervals[0][1];
     for (int i = 1; i < intervals.length; i++) {
-        if (intervals[i].start < end) {
+        if (intervals[i][0] < end) {
             continue;
         }
-        end = intervals[i].end;
+        end = intervals[i][1];
         cnt++;
     }
     return intervals.length - cnt;
@@ -99,10 +99,10 @@ public int eraseOverlapIntervals(Interval[] intervals) {
 使用 lambda 表示式创建 Comparator 会导致算法运行时间过长，如果注重运行时间，可以修改为普通创建 Comparator 语句：
 
 ```java
-Arrays.sort(intervals, new Comparator<Interval>() {
+Arrays.sort(intervals, new Comparator<int[]>() {
     @Override
-    public int compare(Interval o1, Interval o2) {
-        return o1.end - o2.end;
+    public int compare(int[] o1, int[] o2) {
+        return o1[1] - o2[1];
     }
 });
 ```
@@ -141,7 +141,7 @@ public int findMinArrowShots(int[][] points) {
 }
 ```
 
-# 3. 根据身高和序号重组队列
+# 4. 根据身高和序号重组队列
 
 [406. Queue Reconstruction by Height(Medium)](https://leetcode.com/problems/queue-reconstruction-by-height/description/)
 
@@ -173,7 +173,7 @@ public int[][] reconstructQueue(int[][] people) {
 }
 ```
 
-# 4. 买卖股票最大的收益
+# 5. 买卖股票最大的收益
 
 [121. Best Time to Buy and Sell Stock (Easy)](https://leetcode.com/problems/best-time-to-buy-and-sell-stock/description/)
 
@@ -196,7 +196,7 @@ public int maxProfit(int[] prices) {
 ```
 
 
-# 5. 买卖股票的最大收益 II
+# 6. 买卖股票的最大收益 II
 
 [122. Best Time to Buy and Sell Stock II (Easy)](https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/description/)
 
@@ -217,7 +217,7 @@ public int maxProfit(int[] prices) {
 ```
 
 
-# 6. 种植花朵
+# 7. 种植花朵
 
 [605. Can Place Flowers (Easy)](https://leetcode.com/problems/can-place-flowers/description/)
 
@@ -247,7 +247,7 @@ public boolean canPlaceFlowers(int[] flowerbed, int n) {
 }
 ```
 
-# 7. 判断是否为子序列
+# 8. 判断是否为子序列
 
 [392. Is Subsequence (Medium)](https://leetcode.com/problems/is-subsequence/description/)
 
@@ -269,7 +269,7 @@ public boolean isSubsequence(String s, String t) {
 }
 ```
 
-# 8. 修改一个数成为非递减数组
+# 9. 修改一个数成为非递减数组
 
 [665. Non-decreasing Array (Easy)](https://leetcode.com/problems/non-decreasing-array/description/)
 
@@ -303,7 +303,7 @@ public boolean checkPossibility(int[] nums) {
 
 
 
-# 9. 子数组最大的和
+# 10. 子数组最大的和
 
 [53. Maximum Subarray (Easy)](https://leetcode.com/problems/maximum-subarray/description/)
 
@@ -327,7 +327,7 @@ public int maxSubArray(int[] nums) {
 }
 ```
 
-# 10. 分隔字符串使同种字符出现在一起
+# 11. 分隔字符串使同种字符出现在一起
 
 [763. Partition Labels (Medium)](https://leetcode.com/problems/partition-labels/description/)