From 154029eb1cca198174df10da937eb6f2a6bbf70d Mon Sep 17 00:00:00 2001
From: jusexton <justinsexton.dev@gmail.com>
Date: Sun, 28 Jul 2024 01:40:58 -0500
Subject: [PATCH] Added maximum positive or negative integer count solution.

---
 README.md                             |  1 +
 src/leetcode/max_positive_negative.rs | 25 +++++++++++++++++++++++++
 src/leetcode/mod.rs                   |  1 +
 3 files changed, 27 insertions(+)
 create mode 100644 src/leetcode/max_positive_negative.rs

diff --git a/README.md b/README.md
index 9b90a06..a5b5ed6 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,7 @@ other languages.
 - Max Repeating Substring (https://leetcode.com/problems/maximum-repeating-substring/)
 - Sort by Increasing Frequency (https://leetcode.com/problems/sort-array-by-increasing-frequency)
 - Maximum Odd Binary Number (https://leetcode.com/problems/maximum-odd-binary-number)
+- Maximum Count of Positive or Negative Integer (https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer)
 
 #### Medium
 
diff --git a/src/leetcode/max_positive_negative.rs b/src/leetcode/max_positive_negative.rs
new file mode 100644
index 0000000..1feba5b
--- /dev/null
+++ b/src/leetcode/max_positive_negative.rs
@@ -0,0 +1,25 @@
+use std::cmp::Ordering;
+
+pub fn maximum_count(numbers: Vec<i32>) -> i32 {
+    let counts = numbers.into_iter().fold((0, 0), |mut acc, curr| {
+        match curr.cmp(&0) {
+            Ordering::Greater => acc.1 += 1,
+            Ordering::Less => acc.0 += 1,
+            Ordering::Equal => {}
+        }
+        acc
+    });
+    counts.0.max(counts.1)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::maximum_count;
+
+    #[test]
+    fn maximum_positive_negative_count_is_provided() {
+        let numbers = vec![-1, -2, 0, 2, 5, -3];
+        let actual = maximum_count(numbers);
+        assert_eq!(3, actual)
+    }
+}
diff --git a/src/leetcode/mod.rs b/src/leetcode/mod.rs
index 78f37a0..252647d 100644
--- a/src/leetcode/mod.rs
+++ b/src/leetcode/mod.rs
@@ -51,3 +51,4 @@ mod freq_sort;
 mod sort_jumbled_numbers;
 mod max_binary_number;
 mod custom_sort;
+mod max_positive_negative;