feat: 2197_replace_non_coprime_numbers_in_array

2197_replace_non_coprime_numbers_in_array/Cargo.lock

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

2197_replace_non_coprime_numbers_in_array/Cargo.toml

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

2197_replace_non_coprime_numbers_in_array/src/lib.rs

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+pub struct Solution;
+
+impl Solution {
+    pub fn replace_non_coprimes(nums: Vec<i32>) -> Vec<i32> {
+        let mut stack = Vec::<i32>::new();
+
+        for mut num in nums {
+            loop {
+                if stack.is_empty() {
+                    stack.push(num);
+                    break;
+                }
+
+                let top = *stack.last().unwrap();
+                let gcd = Solution::gcd(top, num);
+                if gcd == 1 {
+                    stack.push(num);
+                    break;
+                }
+
+                let lcm = top / gcd * num;
+                num = lcm;
+                stack.pop();
+            }
+        }
+
+        stack
+    }
+
+    fn gcd(a: i32, b: i32) -> i32 {
+        if a == 0 {
+            b
+        } else if a <= b {
+            Solution::gcd(b % a, a)
+        } else {
+            Solution::gcd(b, a)
+        }
+    }
+}