628. Maximum Product of Three Numbers
Given an integer array nums, find three numbers whose product is maximum and return the maximum product.
Example 1:
Input: nums = [1,2,3] Output: 6
Example 2:
Input: nums = [1,2,3,4] Output: 24
Example 3:
Input: nums = [-1,-2,-3] Output: -6
Constraints:
3 <= nums.length <= 104-1000 <= nums[i] <= 1000
Rust Solution
struct Solution;
impl Solution {
fn maximum_product(mut nums: Vec<i32>) -> i32 {
nums.sort_unstable();
let n = nums.len();
i32::max(
nums[0] * nums[1] * nums[n - 1],
nums[n - 1] * nums[n - 2] * nums[n - 3],
)
}
}
#[test]
fn test() {
let nums = vec![1, 2, 3];
assert_eq!(Solution::maximum_product(nums), 6);
let nums = vec![1, 2, 3, 4];
assert_eq!(Solution::maximum_product(nums), 24);
}
Having problems with this solution? Click here to submit an issue on github.