C++ equivalent for Java Collection.frequency?
C++ equivalent for Java Collection.frequency?
我对c++环境有点陌生,我正试图将用java编写的代码转换为c++,我想问一下是否有人可以帮助我在c++中找到一个等同于java Collection.frequency的代码。我试图转换的代码如下:
List<Integer> foundCount = new ArrayList<~>();
.... // some code goes here
...
int count3 = Collections.frequency(foundCount,38);
我真的很感谢你的帮助
标准api提供std::count
计数。
vector<int> v = {23 , 34 , 23 , 583 , 34 , 23};
cout << "23 appears " << count(v.begin() , v.end() , 23) << " times in v"
<< endl;