(deque.binary_search(&100), Err(13)); let r = deque.binary_search(&1); assert!(matches!(r, Ok(1..=4))); 如果要将项目插入已排序的 VecDeque ,同时保持排序顺序: use std::collections::VecDeque; let mut deque: VecDeque<_> = vec![0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, ...
let vec = vec![1,2,3]; 用法示例及判断是否相等: fnmain() {letvec1=Vec::from([1,2,3]);println!("{:?}",vec1);letvec2=vec![1,2,3];println!("{:?}",vec2);assert_eq!(vec1,vec2);assert_eq!(vec1, [1,2,3]);assert_eq!(vec2, [1,2,3]);println!("{}",vec1==vec...
IEEE浮点数规范规定1 < NaN、1 > NaN和NaN == NaN都是false。
let numbers = vec![1, 2, 3, 4, 5]; // 使用binary_search方法进行二分查找 if let Some(position) = numbers.binary_search(&3) { println!("Found 3 at index: {}", position); } else { println!("3 is not in the list"); } } 数据结构 Rust标准库提供了丰富的数据结构,如向量(Vec)...
这意味着比较需要具有 * 总体性 *：a ≤ B或b ≤ a 但是我们刚刚看到浮点数没有这个属性。所以，...
vector.sort()vector;// [0, 1, 2, 4, 6, 8, 10]vector.binary_search(&4);// Ok(3)vector.binary_search(&400);// Err(7) 调整一个 vector 的大小,并把空位置的元素填充为 0: vector.resize(10,0);vector;// [0, 1, 2, 4, 6, 8, 10, 0, 0, 0] ...
binary_search():在有序数组中搜索(二分查找算法)指定的元素,在找到元素时返回其索引,否则返回应该插入元素的位置的索引,维持数组的有序状态。 let arr = [1, 2, 3, 4, 5];assert_eq!(arr.binary_search(&3), Ok(2));assert_eq!(arr.binary_search(&6), Err(5));let arr = [1, 3, 5, 7...
}fnin_order(&self)->Vec<&T> {self.tree.in_order() }fnpost_order(&self)->Vec<&T> {self.tree.post_order() } 总结 基于二叉树,实现了二叉搜索树的插入、检索方法。 附录 源码 usestd::cmp::Ordering;usesuper::{binary_tree::BinaryTree, Node, NodeRef, Tree};#[derive(Default)]pubstruct...
}fnpost_order(&self)->Vec<&T> {self.tree.post_order() }fncontains(&mutself, value: &T)->bool{self.tree.contains(value) } 总结 基于二叉搜索树,来实现平衡二叉树,实现了插入和删除方法。 附录 源码 usestd::cmp::Ordering;usesuper::{binary_search_tree::BinarySearchTree, Node, NodeRef, Tree...
In computer science, a binary search or half-interval search algorithm finds the position of a specified input value (the search "key") within an array sorted by key value. In each step, the algorithm compares the search key value with the key value of the middle element of the array. ...