删除向量中的重复元素 [英] Delete duplicate elements in vector

问题描述

vector< string> str;


我的向量用字符串a，b，c，b，c，d填充。 ，a。

即

str [0] = a; str [1] = b; str [2] = c; .....等等。


现在我想删除上面向量中的重复元素，使得向量只包含不同的元素 ;a，b，c;和d。


我该怎么办？


请帮助


谢谢！

解决方案

vector< string> ; str;


我的向量用字符串a，b，c，b，c，d填充。 ，a。

即

str [0] = a; str [1] = b; str [2] = c; .....等等。


现在我想删除上面向量中的重复元素，使得向量只包含不同的元素 ;a，b，c;和d。


我该怎么办？


请帮助


谢谢!!

我建议使用第二个向量和for循环迭代元素（ vector iterator ）。然后，您可以将当前向量与第二个向量的所有元素进行比较。这是否有意义，或者我是否需要了解更多细节？

vector< string> str;


我的向量用字符串a，b，c，b，c，d填充。 ，a。

即

str [0] = a; str [1] = b; str [2] = c; .....等等。


现在我想删除上面向量中的重复元素，使得向量只包含不同的元素 ;a，b，c;和d。


我该怎么办？


请帮助


谢谢!!

你真的需要一个向量吗？

如果你必须消除重复项，那么使用一个集合是最有用的，因为每个元素都被添加只有一次。


/ Sid

嗨西卡里，


能不能给我更多细节关于你所说的，因为我无法完全理解你的意思。


我有一大堆代码，我一直在使用向量，所以现在我不会能够从向量切换到集合。


使用向量实现此目的的可能方法是什么？


谢谢!!

Hi,

vector<string> str;

I have the vector filled with strings "a", "b", "c", "b", "c", "d", "a".
i.e
str[0] = a; str[1] = b; str[2] = c;.....and so on.

Now I would like to delete the duplicate elements in the above vector such that the vector only contains distinct elemets "a", "b", "c" and "d".

How can I do that??

Please help

Thanks!!

解决方案

Hi,

vector<string> str;

I have the vector filled with strings "a", "b", "c", "b", "c", "d", "a".
i.e
str[0] = a; str[1] = b; str[2] = c;.....and so on.

Now I would like to delete the duplicate elements in the above vector such that the vector only contains distinct elemets "a", "b", "c" and "d".

How can I do that??

Please help

Thanks!!

I would recommend using a second vector and a for loop to iterate through the elements (vector iterator). Then you can compare the current vector against all the elements of the second vector. Does that make sense, or do I need to get into a bit more detail?

Hi,

vector<string> str;

I have the vector filled with strings "a", "b", "c", "b", "c", "d", "a".
i.e
str[0] = a; str[1] = b; str[2] = c;.....and so on.

Now I would like to delete the duplicate elements in the above vector such that the vector only contains distinct elemets "a", "b", "c" and "d".

How can I do that??

Please help

Thanks!!

Do you really need a vector ??
If you have to eliminate duplicates then using a set is most useful as every element is added only once.

/ Sid

Hi Sicarie,

Can you please give me more details on what you have said, as I am not able to exactly grasp what you meant.

I have a large set of code where I have been using vectors, so now I will not be able to switch from vectors to sets.

What is the possible way to achieve this using vectors??

Thanks!!

这篇关于删除向量中的重复元素的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！