mirror of
https://github.com/krahets/hello-algo.git
synced 2024-12-27 20:06:29 +08:00
2655a2f66a
* Add kotlin code block for chapter_hashing * Add kotlin code block for chapter_heap. * Add kotlin code block for chapter_stack_and_queue and chapter_tree * fix indentation * Update binary_tree.md * style(kotlin): simplify code and improve readability. * simplify kt code for chapter_computational_complexity. * style(kotlin): replace ArrayList with MutableList. * Update subset_sum_i.kt Use kotlin api instead of java. * Update subset_sum_ii.kt use kotlin api instead of java * style(kotlin): replace ArrayList with mutablelist. --------- Co-authored-by: Yudong Jin <krahets@163.com>
63 lines
No EOL
1.4 KiB
Kotlin
63 lines
No EOL
1.4 KiB
Kotlin
/**
|
|
* File: list.kt
|
|
* Created Time: 2024-01-25
|
|
* Author: curtishd (1023632660@qq.com)
|
|
*/
|
|
|
|
package chapter_array_and_linkedlist
|
|
|
|
/* Driver Code */
|
|
fun main() {
|
|
/* 初始化列表 */
|
|
// 可变集合
|
|
val nums = mutableListOf(1, 3, 2, 5, 4)
|
|
println("列表 nums = $nums")
|
|
|
|
/* 访问元素 */
|
|
val num = nums[1]
|
|
println("访问索引 1 处的元素，得到 num = $num")
|
|
|
|
/* 更新元素 */
|
|
nums[1] = 0
|
|
println("将索引 1 处的元素更新为 0 ，得到 nums = $nums")
|
|
|
|
/* 清空列表 */
|
|
nums.clear()
|
|
println("清空列表后 nums = $nums")
|
|
|
|
/* 在尾部添加元素 */
|
|
nums.add(1)
|
|
nums.add(3)
|
|
nums.add(2)
|
|
nums.add(5)
|
|
nums.add(4)
|
|
println("添加元素后 nums = $nums")
|
|
|
|
/* 在中间插入元素 */
|
|
nums.add(3, 6)
|
|
println("在索引 3 处插入数字 6 ，得到 nums = $nums")
|
|
|
|
/* 删除元素 */
|
|
nums.removeAt(3)
|
|
println("删除索引 3 处的元素，得到 nums = $nums")
|
|
|
|
/* 通过索引遍历列表 */
|
|
var count = 0
|
|
for (i in nums.indices) {
|
|
count += nums[i]
|
|
}
|
|
|
|
/* 直接遍历列表元素 */
|
|
for (j in nums) {
|
|
count += j
|
|
}
|
|
|
|
/* 拼接两个列表*/
|
|
val nums1 = mutableListOf(6, 8, 7, 10, 9)
|
|
nums.addAll(nums1)
|
|
println("将列表 nums1 拼接到 nums 之后，得到 nums = $nums")
|
|
|
|
/* 排序列表 */
|
|
nums.sort()
|
|
println("排序列表后 nums = $nums")
|
|
} |