如何唯一化存储在矢量中的对象中存储的数据? [英] How to unique my data that are stored in an object which are stored in a vector?

问题描述

我想创建一种方法来消除文本文件中的重复项.

I want to create a method to eliminate duplicates from a text file.

为什么我会被否决?就像我没有在问之前没有在网上搜索一样.

Why am i getting downvoted ? It's not like I didn't search through the web before asking.

例如，文本文件中的数据:

For example, the data in the text file:

Fruits:Edible:Inedible
Apple:5:10
Apple:1:2
Pear:5:1
Orange:20:1
Pear:5:1
Apple:5:10
Orange:1:20
Orange:20:1

根据此示例，我有一类苹果，橙子，梨.使用该类，我使用set方法创建了3种不同的对象向量来将它们存储在其中.

I have a class of apple, orange, pear according to this example. Using the class, I have created 3 different object vector to store them in, using set methods.

例如，如果检测到Apple:

Apple.setedible(Edible);
Apple.setinedible(Inedible);

我目前可以将它们很好地存储到它们的对象向量中，这将导致以下结果:

I can currently store them nicely into their object vectors which will result in this:

In Apple vector:
5:10
1:2
5:10

In Orange Vector:
20:1
1:20
20:1

In Pear Vector:
5:1
5:1

我想消除基于edible和inedible的重复项，而且我不知道如何消除它们，这会导致以下结果:

I want to eliminate the duplicates base on edible and inedible and I have no idea on how am I going to eliminate them which will result me in:

In Apple vector:
5:10
1:2

In Orange Vector:
20:1
1:20

In Pear Vector:
5:1

请告知.

推荐答案

您想要什么作为5:10或1:2的类型?是一个字符串还是几个整数?我想这是我的示例字符串.

What do you want as type for 5:10 or 1:2 ? Is it a string or a couple of integers ? I suppose it's a string for my example.

您应该使用std::map< std::string , std::set<std::string> >来存储数据.然后，您可以像下面的示例一样添加它，每个水果的每个字符串都是唯一的:

You should use a std::map< std::string , std::set<std::string> > to store your data. Then you can add it like this example with each string unique for each fruit :

std::map< std::string , std::set<std::string> > data;
data["Apple"].insert("5:10");
data["Apple"].insert("1:2");
data["Apple"].insert("5:10"); // Nothing is inserted here, already exists

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