vector<int>::iterator result = find( L.begin( ), L.end( ), 3 ); //查找3 if ( result == L.end( ) ) //没找到 cout << "No" << endl; else //找到 cout << "Yes" << endl; } 记着要包含algorithm这一头文件,其定义了find这一函数。 资料参考:https://www.coonote.com/cplusplu...
https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md Always initialize variables, use initialization lists for member variables. and it's not even correct. it should be: vector<conststring*> finds{}; which is just being explicit, and good practice. ...
在vector中使用find函数查找数字的方法 下面将演示如何在C++的vector中使用`find`函数来查找数字。 步骤一:包含必要的头文件 在使用`find`函数之前,需要包含`<vector>`和`<algorithm>`头文件。 ```cpp include <iostream> include <vector> include <algorithm> ``` 步骤二:创建一个vector并初始化 首先,我们创建...
你只需要提供一个自定义的比较函数即可:cpp #include #include struct MyObject { int value; };bool findMyObject(const MyObject& obj) { // 自定义的比较逻辑 }int main() { std::vector vec; // 向vec中添加一些MyObject对象 auto it = std::find_if(vec.begin(), vec.end(), findMyObject)...
用C++的stl库,相信大家都有用vector的经历,毕竟vector支持直接下标方式取数据的确方便很多。 但是vector默认是不提供find方法的,所以我们在查找的时候,通常这样写代码: vector<int>vec; for(unsignedinti=0;i<vec.size();++i) { if(vec[i]==xxx)
std::vector<int>v={2,1,3,6,7,9,8}; intmin=findMinimum(v); intmax=findMaximum(v); std::cout<<min<<", "<<max<<std::endl;// 1, 9 return0; } DownloadRun Code That’s all about finding the min or max value in a vector in C++. ...
@文心快码no member named 'find' in 'std::vector<int>' 文心快码 针对你的问题“no member named 'find' in 'std::vector<int>'”,我将分点进行回答: 确认上下文: 你遇到的问题是在尝试使用std::vector<int>的find成员函数时,发现编译器报错,提示std::vector<int>没有名为find的成员...
该函数返回一个迭代器,指向范围[first1,last1)中最后一次出现的[first2,last2)的第一个元素。如果未找到序列,则函数返回last1值。示例1#include <iostream> #include <algorithm> #include <vector> bool newfunction (int m, int n) { return (m==n); } int main () { int newints[] = {1,2,...
cout <<"The vector size is: " << s ; return 0; } Output: In this program, a vector is declared with string elements, unlike the above programs. But, the size() function prints the size of the vector. Example #4 CPP program that creates an empty vector and prints the size ...
{std::map<char,int>mymap;std::map<char,int>::iterator it; mymap['a']=50; mymap['b']=100; mymap['c']=150; mymap['d']=200; it = mymap.find('b');if(it != mymap.end()) mymap.erase (it);// print content:std::cout<<"elements in mymap:"<<'\n';std::cout<<"...