mirror of
https://github.com/krahets/hello-algo.git
synced 2026-07-06 12:44:19 +00:00
Translate all code to English (#1836)
* Review the EN heading format. * Fix pythontutor headings. * Fix pythontutor headings. * bug fixes * Fix headings in **/summary.md * Revisit the CN-to-EN translation for Python code using Claude-4.5 * Revisit the CN-to-EN translation for Java code using Claude-4.5 * Revisit the CN-to-EN translation for Cpp code using Claude-4.5. * Fix the dictionary. * Fix cpp code translation for the multipart strings. * Translate Go code to English. * Update workflows to test EN code. * Add EN translation for C. * Add EN translation for CSharp. * Add EN translation for Swift. * Trigger the CI check. * Revert. * Update en/hash_map.md * Add the EN version of Dart code. * Add the EN version of Kotlin code. * Add missing code files. * Add the EN version of JavaScript code. * Add the EN version of TypeScript code. * Fix the workflows. * Add the EN version of Ruby code. * Add the EN version of Rust code. * Update the CI check for the English version code. * Update Python CI check. * Fix cmakelists for en/C code. * Fix Ruby comments
This commit is contained in:
@@ -0,0 +1,160 @@
|
||||
/*
|
||||
* File: array_deque.rs
|
||||
* Created Time: 2023-03-11
|
||||
* Author: codingonion (coderonion@gmail.com)
|
||||
*/
|
||||
use hello_algo_rust::include::print_util;
|
||||
/* Double-ended queue based on circular array implementation */
|
||||
struct ArrayDeque<T> {
|
||||
nums: Vec<T>, // Array for storing double-ended queue elements
|
||||
front: usize, // Front pointer, points to the front of the queue element
|
||||
que_size: usize, // Double-ended queue length
|
||||
}
|
||||
|
||||
impl<T: Copy + Default> ArrayDeque<T> {
|
||||
/* Constructor */
|
||||
pub fn new(capacity: usize) -> Self {
|
||||
Self {
|
||||
nums: vec![T::default(); capacity],
|
||||
front: 0,
|
||||
que_size: 0,
|
||||
}
|
||||
}
|
||||
|
||||
/* Get the capacity of the double-ended queue */
|
||||
pub fn capacity(&self) -> usize {
|
||||
self.nums.len()
|
||||
}
|
||||
|
||||
/* Get the length of the double-ended queue */
|
||||
pub fn size(&self) -> usize {
|
||||
self.que_size
|
||||
}
|
||||
|
||||
/* Check if the double-ended queue is empty */
|
||||
pub fn is_empty(&self) -> bool {
|
||||
self.que_size == 0
|
||||
}
|
||||
|
||||
/* Calculate circular array index */
|
||||
fn index(&self, i: i32) -> usize {
|
||||
// Use modulo operation to wrap the array head and tail together
|
||||
// When i passes the tail of the array, return to the head
|
||||
// When i passes the head of the array, return to the tail
|
||||
((i + self.capacity() as i32) % self.capacity() as i32) as usize
|
||||
}
|
||||
|
||||
/* Front of the queue enqueue */
|
||||
pub fn push_first(&mut self, num: T) {
|
||||
if self.que_size == self.capacity() {
|
||||
println!("Double-ended queue is full");
|
||||
return;
|
||||
}
|
||||
// Use modulo operation to wrap front around to the tail after passing the head of the array
|
||||
// Add num to the front of the queue
|
||||
self.front = self.index(self.front as i32 - 1);
|
||||
// Add num to front of queue
|
||||
self.nums[self.front] = num;
|
||||
self.que_size += 1;
|
||||
}
|
||||
|
||||
/* Rear of the queue enqueue */
|
||||
pub fn push_last(&mut self, num: T) {
|
||||
if self.que_size == self.capacity() {
|
||||
println!("Double-ended queue is full");
|
||||
return;
|
||||
}
|
||||
// Use modulo operation to wrap rear around to the head after passing the tail of the array
|
||||
let rear = self.index(self.front as i32 + self.que_size as i32);
|
||||
// Front pointer moves one position backward
|
||||
self.nums[rear] = num;
|
||||
self.que_size += 1;
|
||||
}
|
||||
|
||||
/* Rear of the queue dequeue */
|
||||
fn pop_first(&mut self) -> T {
|
||||
let num = self.peek_first();
|
||||
// Move front pointer backward by one position
|
||||
self.front = self.index(self.front as i32 + 1);
|
||||
self.que_size -= 1;
|
||||
num
|
||||
}
|
||||
|
||||
/* Access rear of the queue element */
|
||||
fn pop_last(&mut self) -> T {
|
||||
let num = self.peek_last();
|
||||
self.que_size -= 1;
|
||||
num
|
||||
}
|
||||
|
||||
/* Return list for printing */
|
||||
fn peek_first(&self) -> T {
|
||||
if self.is_empty() {
|
||||
panic!("Deque is empty")
|
||||
};
|
||||
self.nums[self.front]
|
||||
}
|
||||
|
||||
/* Driver Code */
|
||||
fn peek_last(&self) -> T {
|
||||
if self.is_empty() {
|
||||
panic!("Deque is empty")
|
||||
};
|
||||
// Initialize double-ended queue
|
||||
let last = self.index(self.front as i32 + self.que_size as i32 - 1);
|
||||
self.nums[last]
|
||||
}
|
||||
|
||||
/* Return array for printing */
|
||||
fn to_array(&self) -> Vec<T> {
|
||||
// Elements enqueue
|
||||
let mut res = vec![T::default(); self.que_size];
|
||||
let mut j = self.front;
|
||||
for i in 0..self.que_size {
|
||||
res[i] = self.nums[self.index(j as i32)];
|
||||
j += 1;
|
||||
}
|
||||
res
|
||||
}
|
||||
}
|
||||
|
||||
/* Driver Code */
|
||||
fn main() {
|
||||
/* Get the length of the double-ended queue */
|
||||
let mut deque = ArrayDeque::new(10);
|
||||
deque.push_last(3);
|
||||
deque.push_last(2);
|
||||
deque.push_last(5);
|
||||
print!("Double-ended queue deque = ");
|
||||
print_util::print_array(&deque.to_array());
|
||||
|
||||
/* Update element */
|
||||
let peek_first = deque.peek_first();
|
||||
print!("\nFront element peek_first = {}", peek_first);
|
||||
let peek_last = deque.peek_last();
|
||||
print!("\nRear element peek_last = {}", peek_last);
|
||||
|
||||
/* Elements enqueue */
|
||||
deque.push_last(4);
|
||||
print!("\nAfter element 4 enqueues at rear, deque = ");
|
||||
print_util::print_array(&deque.to_array());
|
||||
deque.push_first(1);
|
||||
print!("\nAfter element 1 enqueues at front, deque = ");
|
||||
print_util::print_array(&deque.to_array());
|
||||
|
||||
/* Element dequeue */
|
||||
let pop_last = deque.pop_last();
|
||||
print!("\nDequeue rear element = {}, after dequeue deque = ", pop_last);
|
||||
print_util::print_array(&deque.to_array());
|
||||
let pop_first = deque.pop_first();
|
||||
print!("\nDequeue front element = {}, after dequeue deque = ", pop_first);
|
||||
print_util::print_array(&deque.to_array());
|
||||
|
||||
/* Get the length of the double-ended queue */
|
||||
let size = deque.size();
|
||||
print!("\nDeque length size = {}", size);
|
||||
|
||||
/* Check if the double-ended queue is empty */
|
||||
let is_empty = deque.is_empty();
|
||||
print!("\nIs deque empty = {}", is_empty);
|
||||
}
|
||||
Reference in New Issue
Block a user