时间复杂度和补码有什么关系?
What's the relationship between time complexity and complement?
时间复杂度和补码有什么关系?
不明白补码是什么意思
我不明白下面的句子。
Approach #2 (Two-pass Hash Table) [Accepted]
To improve our run time complexity, we need a more efficient way to check if the complement exists in the array. If the complement exists, we need to look up its index. What is the best way to maintain a mapping of each element in the array to its index? A hash table.
Complement
指的是添加到当前数字后将为您提供 target
.
的值的其他数字
如果(对于所有)a
+ b
= target
,那么a
的补数是b
.
为了查看一个数的补码是否存在,而不是循环遍历数组(即O(n )), 他们正在存储它(源数组中的元素)是一个散列映射。
时间复杂度和补码有什么关系?
不明白补码是什么意思
我不明白下面的句子。
Approach #2 (Two-pass Hash Table) [Accepted]
To improve our run time complexity, we need a more efficient way to check if the complement exists in the array. If the complement exists, we need to look up its index. What is the best way to maintain a mapping of each element in the array to its index? A hash table.
Complement
指的是添加到当前数字后将为您提供 target
.
如果(对于所有)a
+ b
= target
,那么a
的补数是b
.
为了查看一个数的补码是否存在,而不是循环遍历数组(即O(n )), 他们正在存储它(源数组中的元素)是一个散列映射。