array-product

README.md

@@ -31,4 +31,5 @@
 - [2024-05-20 把0移到末尾](./move-zeros)
 - [2024-05-21 满足target最小子数组长度](./min-sub-array-len)
 - [2024-05-22 找到最大可及的数字](./find-the-maximum-achievable-number)
+- [2024-05-23 数组乘积的符号](./array-sign)
 

array-sign/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "array-sign"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

array-sign/src/main.rs

@@ -0,0 +1,8 @@
+mod solution;
+
+use crate::solution::Solution;
+fn main() {
+    println!("Hello, world!{}", Solution::array_sign(vec![-1, -2, -3, -4, 3, 2, 1]));
+
+    println!("Hello, world!{}", Solution::array_sign(vec![1, 3, 0, 5, 6]));
+}

array-sign/src/solution.rs

@@ -0,0 +1,16 @@
+pub struct Solution;
+
+impl Solution {
+    pub fn array_sign(nums: Vec<i32>) -> i32 {
+        let mut result = 1;
+        for num in nums {
+            if num == 0 {
+                return 0;
+            } else if num < 0 {
+                result = -result;
+            }
+
+        }
+        result
+    }
+}

array-sign/title.md

@@ -0,0 +1 @@
+2024-05-23 数组乘积的符号