fn main() { let mut nums = vec![1, 1, 2, 3, 3]; // let mut nums= vec![0,0,1,1,1,2,2,3,3,4]; let len = remove_duplicates(&mut nums); println!("去重后vec的长度为: {:?}", len); // 输出: 3 } fn remove_duplicates(nums: &mut Vec<i32>) -> usize { if nums...
1 知识点这里没有啥Rust相关的知识点,就是数组操作,和C++没啥两样 2 解法双指针 需要用一个哨兵记住当前 j指针的位置,start才是有效的数据。impl Solution { pub fn remove_duplicates(nums: &mut Vec<i…
fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {if nums.len() <= 2 {return nums.len() as i32;}let mut i = 1;for j in 2..nums.len() {if nums[j] != nums[i - 1] {i += 1;nums[i] = nums[j];}}(i + 1) as i32}fn main() {let mut nums = vec![1, 1, 1...
fn main() { let x = vec![11, 22, 33]; let n = x.len(); println!("x has {} elements", n); } x has 3 elements118. List to set Create set y from list x.x may contain duplicates. y is unordered and has no repeated values. 从list到set package main import "fmt" func...
fn main() { let x = vec![11, 22, 33]; let n = x.len(); println!("x has {} elements", n); } x has 3 elements 118. List to set Create set y from list x. x may contain duplicates. y is unordered and has no repeated values. 从list到set 代码语言:javascript 代码运行次数...
例如,尝试在迭代Vec时删除元素: 代码语言:txt 复制 let mut vec = vec![1, 2, 3, 4, 5]; for i in &vec { if *i == 3 { vec.remove(i); // 这会导致编译错误 } } 解决方法:使用迭代器的filter方法或者retain方法来安全地移除元素。 代码语言:txt 复制 let mut vec = vec![1, 2, 3,...
说明:remove()移除并返回向量中位于 index 位置的元素,将其后的所有元素向左移动。 fn main() { let mut v = vec![10,20,30]; v.remove(1); println!("{:?}",v); } 复制输出[10, 30] 复制说明- contains()如果切片包含具有给定值的元素,则返回 true - ...
pub param_names: Vec<String>, } impl<G: EmissionGuarantee> Diagnostic<'_, G> for UnusedGenericParamsHint { #[track_caller] fn into_diag(self, dcx: DiagCtxtHandle<'_>, level: Level) -> Diag<'_, G> { let mut diag = Diag::new(dcx, level, fluent::monomorphize_unused_generic_par...
mod duplicates; mod import_export_link; @@ -292,11 +291,6 @@ pub fn link(sess: &Session, mut inputs: Vec<Module>, opts: &Options) -> Result<L let _timer = sess.timer("link_dce_2"); dce::dce(output); } { let _timer = sess.timer("link_remove_extra_capabilities"); capabil...
remove(1); println!("{:?}",v); } Output[10, 30] Illustration - contains()Returns true if the slice contains an element with the given value −fn main() { let v = vec![10,20,30]; if v.contains(&10) { println!("found 10"); } println!("{:?}",v); } Output...