见：std::erase, std::erase_if (std::vector)en.cppreference.com/w/cpp/container/vector/era...
问调用vector.erase() cpp时出现异常EN一.异常信息 The 'cursor' option is required, except for agg...
查看MSDN,对于erase的返回值是这样描述的:An iterator that designates the first element remaining beyond any elements removed, or a pointer to the end of the vector if no such element exists,于是改代码: for(vector<int>::iterator iter=veci.begin(); iter!=veci.end(); iter++) { if( *iter ...
vector<string> cars = {"Volvo", "BMW", "Ford", "Mazda"}; cars.erase(cars.begin() + 1); for (string car : cars) { cout << car << "\n"; }Try it Yourself » Definition and UsageThe erase() function removes an element or a range of elements from a vector. The elements ...
从根本上说，STL是一些“容器”的集合，这些“容器”有list, vector,set,map等，STL也是算法和其它一些...
用下面的方法纠正std::vector iterator的失效是否有效? No. From cppreference 使迭代器和引用在擦除点或之后失效,包括end()迭代器。 v.erase(v.begin());已使所有迭代器无效。使用it具有未定义的行为。 迭代器和&迭代器的区别是什么? Case 1 auto关键字(不使用&)推断出non-reference类型。这意味着在您的案...
// vector_erase.cpp // compile with: /EHsc #include <vector> #include <iostream> using namespace std; int main() { vector <int> vec; vector <int>::iterator pos; vec.push_back(10); vec.push_back(20); vec.push_back(30); vec.push_back(40); vec.push_back(50); cout << "Cap...
#include<vector> usingnamespacestd; intmain() { vector<int>ivec; inti; vector<int>::iterator it; for(i=0;i<10;++i) ivec.push_back(i); for(i=0;i<10;++i) ivec.push_back(i); for(it=ivec.begin();it!=ivec.end();++it) ...
Linear: the number of calls to the destructor of T is the same as the number of elements erased, the assignment operator of T is called the number of times equal to the number of elements in the vector after the erased elements.
问无法在C++ vector<pair<>>中调用erase()操作EN1、定义vector<vector<int>> A;//错误的定义方式vector<vector<int> > A;//正缺的定义方式2、插入元素若想定义A = [[0,1,2],[3,4,5]]，则：//正确的插入方式vector<vector<int> > A;//A.push_back里必须是vectorvector<int> B;B.push_back(0...