20250402 finished.

src/problem/mod.rs

@@ -574,3 +574,5 @@ mod p2109_adding_spaces_to_a_string;
 mod p2278_percentage_of_letter_in_string;
 
 mod p2140_solving_questions_with_brainpower;
+
+mod p2873_maximum_value_of_an_ordered_triplet_i;

src/problem/p2873_maximum_value_of_an_ordered_triplet_i.rs

@@ -0,0 +1,39 @@
+/**
+ * [2873] Maximum Value of an Ordered Triplet I
+ */
+pub struct Solution {}
+
+// submission codes start here
+
+impl Solution {
+    pub fn maximum_triplet_value(nums: Vec<i32>) -> i64 {
+        let nums: Vec<i64> = nums.into_iter().map(|x| x as i64).collect();
+
+        let mut result = 0;
+        let n = nums.len();
+
+        for i in 0..n {
+            for j in i + 1..n {
+                for k in j + 1..n {
+                    result = result.max((nums[i] - nums[j]) * nums[k])
+                }
+            }
+        }
+
+        result
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_2873() {
+        assert_eq!(77, Solution::maximum_triplet_value(vec![12, 6, 1, 2, 7]));
+        assert_eq!(133, Solution::maximum_triplet_value(vec![1, 10, 3, 4, 19]));
+        assert_eq!(0, Solution::maximum_triplet_value(vec![1, 2, 3]));
+    }
+}