STL array方法总结(三)Element access(22)
—————————————————————————————————————————————————————————————————— //总结的不好的地方请多多指导,可以在下面留言或者点击左上方邮件地址给我发邮件,指出我的错误以及不足,以便我
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//总结的不好的地方请多多指导,可以在下面留言或者点击左上方邮件地址给我发邮件,指出我的错误以及不足,以便我修改,更好的分享给大家,谢谢。
author:天下无双
Email:coderguang@gmail.com
2014-8-30
于GDUT
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Implementing a custom comparator can be accomplished by creating a class that overloads operator(), which accepts two parameters and indicates the result of the comparison. For example, the StringLengthComparator class sorts strings by comparing their lengths: Create a class and overload operator(), returning a Boolean value indicating the comparison result. Using custom comparators for sorting in container algorithms. Custom comparators allow us to sort or compare data based on custom criteria, even if we need to use custom comparison criteria.

You can get the number of elements in a container by using the container's size() member function. For example, the size() function of the vector container returns the number of elements, the size() function of the list container returns the number of elements, the length() function of the string container returns the number of characters, and the capacity() function of the deque container returns the number of allocated memory blocks.

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