20240118 Finished

src/problem/mod.rs

@@ -19,4 +19,5 @@ mod p2182_construct_string_with_repeat_limit;
 mod p83_remove_duplicates_from_sorted_list;
 mod p82_remove_duplicates_from_sorted_list_ii;
 mod p2719_count_of_integers;
-mod p2744_find_maximum_number_of_string_pairs;
+mod p2744_find_maximum_number_of_string_pairs;
+mod p2171_removing_minimum_number_of_magic_beans;

src/problem/p2171_removing_minimum_number_of_magic_beans.rs

@@ -0,0 +1,41 @@
+/**
+ * [2171] Removing Minimum Number of Magic Beans
+ */
+pub struct Solution {}
+
+
+// submission codes start here
+
+use std::cmp::min;
+impl Solution {
+    pub fn minimum_removal(beans: Vec<i32>) -> i64 {
+        let mut beans = beans;
+        beans.sort_unstable();
+
+        let mut sum = 0i64;
+        for i in &beans {
+            sum += *i as i64;
+        }
+
+        let mut result = i64::MAX;
+        for (index, value) in (&beans).iter().enumerate() {
+            result = min(result,
+                         sum - (*value as i64) * (beans.len() - index) as i64);
+        }
+
+        result
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_2171() {
+        assert_eq!(Solution::minimum_removal(vec![4,1,6,5]), 4);
+        assert_eq!(Solution::minimum_removal(vec![2,10,3,2]), 7);
+    }
+}