输出结果为: Elements in the vector: 3 7 11 5 First element: 3 Second element: 7 Size of the vector: 4 Elements in the vector after erasing: 3 7 5 Size of the vector after clearing: 0
// constructors used in the same order as described above:std::vector<int> first;// empty vectorstd::vector<int>second(4,100);// four ints with value 100std::vector<int>third(second.begin(),second.end());// iterating through secondstd::vector<int>fourth(third);// a copy of thir...
C++中的结构体vector排序详解 使用sort函数对一个vector很常用,前提是通文件中必须包含#include ,但是针对结构体vector排序则需要进行一定的改动。具体事例如下所示: // sort algorithm example #include <iostream> // std::cout #include <algorithm> // std::sort #include <vector> // std::vector bool my...
// vector::get_allocator #include <iostream> #include <vector> int main () { std::vector<int> myvector; int * p; unsigned int i; // allocate an array with space for 5 elements using vector's allocator: p = myvector.get_allocator().allocate(5); // construct values in-place on ...
https://riptutorial.com/cplusplus/example/11151/find-max-and-min-element-and-respective-index-in-a-vector 1vector<int> row_y = {502,263,684,324,979};23//最大值索引和最大值4introw_y_max_index = max_element(row_y.begin(), row_y.end()) -row_y.begin();5cout <<"row_y_max_...
}///reference:https://corecplusplustutorial.com/difference-between-emplace_back-and-push_back-function/namespace{classDat {inti; std::stringss;charc;public: Dat(intii, std::strings,charcc) :i(ii), ss(s), c(cc) { }~Dat() { } }; }int...
https://learn.microsoft.com/en-us/cpp/cpp/lambda-expressions-in-cpp?view=msvc-170 Wayne Please sign in to rate this answer. 1 person found this answer helpful. 1 commentShow comments for this answerReport a concern Oct 24, 2022, 2:12 AM ...
<vector> std::vector::crend const_reverse_iterator crend() const noexcept; Return const_reverse_iterator to reverse end Returns aconst_reverse_iteratorpointing to the theoretical element preceding the first element in the container (which is considered itsreverse end). ...
for(std::vector<int>::iterator it=myvec.end()-1;it>=myvec.begin();it--) { //处理逻辑自己定义,我这里自己直接输出了 cout<<*it<<endl; if(it==myvec.begin()) break;//走到这里就不能再减了 } 使用反向迭代器逆序遍历vector代码 ...
Breadcrumbs cplusplus/ vector简单使用.cppTop File metadata and controls Code Blame 78 lines (63 loc) · 1.85 KB Raw#include<iostream> #include<vector> template <typename T> void show(std::vector<T>& vec) { typename std::vector<T>::iterator it = vec.begin(); while (it != vec.end(...