20250220 finished.

src/problem/mod.rs

@@ -494,3 +494,5 @@ mod p1299_replace_elements_with_greatest_element_on_right_side;
 mod p2080_range_frequency_queries;
 
 mod p624_maximum_distance_in_arrays;
+
+mod p2595_number_of_even_and_odd_bits;

src/problem/p2595_number_of_even_and_odd_bits.rs

@@ -0,0 +1,43 @@
+/**
+ * [2595] Number of Even and Odd Bits
+ */
+pub struct Solution {}
+
+// submission codes start here
+
+impl Solution {
+    pub fn even_odd_bit(mut n: i32) -> Vec<i32> {
+        let mut is_even = true;
+        let mut even_count = 0;
+        let mut odd_count = 0;
+
+        while n > 0 {
+            let bit = n % 2;
+            if bit == 1 {
+                if is_even {
+                    even_count += 1;
+                } else {
+                    odd_count += 1;
+                }
+            }
+
+            is_even = !is_even;
+            n = n / 2;
+        }
+
+        vec![even_count, odd_count]
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_2595() {
+        assert_eq!(vec![1, 2], Solution::even_odd_bit(50));
+        assert_eq!(vec![0, 1], Solution::even_odd_bit(2));
+    }
+}