20240915 finished.

src/problem/mod.rs

@@ -235,4 +235,5 @@ mod p2552_count_increasing_quadruplets;
 mod p2555_maximize_win_from_two_segments;
 mod p2576_find_the_maximum_number_of_marked_indices;
 mod p2398_maximum_number_of_robots_within_budget;
-mod p2390_removing_stars_from_a_string;
+mod p2390_removing_stars_from_a_string;
+mod p2848_points_that_intersect_with_cars;

src/problem/p2848_points_that_intersect_with_cars.rs

@@ -0,0 +1,43 @@
+/**
+ * [2848] Points That Intersect With Cars
+ */
+pub struct Solution {}
+
+
+// submission codes start here
+
+impl Solution {
+    pub fn number_of_points(nums: Vec<Vec<i32>>) -> i32 {
+        let mut nums: Vec<(i32, i32)> = nums.iter().map(|i| (i[0], i[1])).collect();
+        nums.sort();
+
+        let mut result = 0;
+        let mut last_end = 0;
+
+        for (start, end) in nums {
+            if last_end < start {
+                result += (end - start) + 1;
+                last_end = end;
+            } else if end > last_end {
+                result += (end - last_end);
+                last_end = end;
+            }
+        }
+
+        result
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_2848() {
+        assert_eq!(7, Solution::number_of_points(vec![vec![3, 6], vec![1, 5], vec![4, 7]]));
+        assert_eq!(7, Solution::number_of_points(vec![vec![1, 3], vec![5, 8]]));
+        assert_eq!(8, Solution::number_of_points(vec![vec![4, 4], vec![9, 10], vec![9, 10], vec![3, 8]]));
+    }
+}