feat: 3005_count_elements_with_maximum_frequency

3005_count_elements_with_maximum_frequency/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "count_elements_with_maximum_frequency"
+version = "0.1.0"

3005_count_elements_with_maximum_frequency/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "count_elements_with_maximum_frequency"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

3005_count_elements_with_maximum_frequency/src/lib.rs

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+pub struct Solution;
+
+impl Solution {
+    pub fn max_frequency_elements(nums: Vec<i32>) -> i32 {
+        let mut map = std::collections::HashMap::<i32, i32>::new();
+
+        for num in nums {
+            *map.entry(num).or_insert(0) += 1;
+        }
+
+        let mut max_freq = 0;
+        let mut max_freq_count = 0;
+        for freq in map.values() {
+            if *freq > max_freq {
+                max_freq = *freq;
+                max_freq_count = 1;
+            } else if *freq == max_freq {
+                max_freq_count += 1;
+            }
+        }
+
+        max_freq_count * max_freq
+    }
+}