struct Solution; impl Solution { pub fn merge(nums1: &mut Vec, m: i32, nums2: &mut Vec, n: i32) { let (mut m ) } } fn main() { let mut nums1 = vec![1,2,3,0,0,0]; let mut nums2 = vec![2,5,6]; let (m, n) = (3, 3); Solution::merge(&mut nums1, m, &mut nums2, n); }