p3105

Author: ian-hon

src/p3105.rs

@@ -0,0 +1,36 @@
+pub fn run() {
+    for i in [
+
+    ] {
+        println!("{}", longest_monotonic_subarray(i));
+    }
+}
+
+pub fn longest_monotonic_subarray(nums: Vec<i32>) -> i32 {
+    let mut inc = 1;
+    let mut dec = 1;
+
+    let mut highest = 1;
+
+    let mut nums = nums.iter();
+    let mut previous = *nums.next().unwrap();
+    while let Some(n) = nums.next() {
+        if *n > previous { 
+            // inc
+            inc += 1;
+            dec = 1;
+        } else if *n < previous {
+            // dec
+            dec += 1;
+            inc = 1;
+        } else {
+            dec = 1;
+            inc = 1;
+        }
+
+        highest = highest.max(inc.max(dec));
+        previous = *n;
+    }
+
+    highest
+}