add 2848

Author: fishercoder1534

Diff for: paginated_contents/algorithms/3rd_thousand/README.md

@@ -11,6 +11,7 @@
 | 2864 | [Maximum Odd Binary Number](https://leetcode.com/problems/maximum-odd-binary-number/)                                                                                                             | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2864.java)                                       |                                      | Easy                                     |Greedy
 | 2859 | [Sum of Values at Indices With K Set Bits](https://leetcode.com/problems/sum-of-values-at-indices-with-k-set-bits/)                                                                                                             | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2859.java)                                       |                                      | Easy                                     |
 | 2855 | [Minimum Right Shifts to Sort the Array](https://leetcode.com/problems/minimum-right-shifts-to-sort-the-array/)                                                                                                             | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2855.java)                                       |                                      | Easy                                     |
+| 2848 | [Points That Intersect With Cars](https://leetcode.com/problems/points-that-intersect-with-cars/)                                                                                                             | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2848.java)                                       |                                      | Easy                                     |
 | 2839 | [Check if Strings Can be Made Equal With Operations I](https://leetcode.com/problems/check-if-strings-can-be-made-equal-with-operations-i/)                                                                                                          | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2839.java)                                       |                                      | Easy                                     |
 | 2833 | [Furthest Point From Origin](https://leetcode.com/problems/furthest-point-from-origin/)                                                                                                          | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2833.java)                                       |                                      | Easy                                     |
 | 2828 | [Check if a String Is an Acronym of Words](https://leetcode.com/problems/check-if-a-string-is-an-acronym-of-words/)                                                                                                          | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2828.java)                                       |                                      | Easy                                     |

Diff for: src/main/java/com/fishercoder/solutions/thirdthousand/_2848.java

@@ -0,0 +1,19 @@
+package com.fishercoder.solutions.thirdthousand;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class _2848 {
+    public static class Solution1 {
+        public int numberOfPoints(List<List<Integer>> nums) {
+            Set<Integer> set = new HashSet<>();
+            for (List<Integer> num : nums) {
+                for (int i = num.get(0); i <= num.get(1); i++) {
+                    set.add(i);
+                }
+            }
+            return set.size();
+        }
+    }
+}

Diff for: src/test/java/com/fishercoder/thirdthousand/_2848Test.java

@@ -0,0 +1,26 @@
+package com.fishercoder.thirdthousand;
+
+import com.fishercoder.solutions.thirdthousand._2848;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class _2848Test {
+    private static _2848.Solution1 solution1;
+
+    @BeforeEach
+    public void setup() {
+        solution1 = new _2848.Solution1();
+    }
+
+    @Test
+    public void test1() {
+        assertEquals(7, solution1.numberOfPoints(Arrays.asList(Arrays.asList(3, 6),
+                Arrays.asList(1, 5),
+                Arrays.asList(4, 7))));
+    }
+
+}