for loop in vector c++ code example
Example 1: c++ iterate through vectgor
std::vector<int> vec_of_ints(100);
for (int i = 0; i < vec_of_ints.size(); i++){
std::cout << vec_of_ints.at(i) << " ";
}
std::cout << std::endl;
Example 2: how to iterate trough a vector in c++
vector<int> myVector;
myVector.push_back(1);
myVector.push_back(2);
myVector.push_back(3);
myVector.push_back(4);
for(auto x: myVector){
cout<< x << " ";
}
vector<pair<int,int>> myVectorOfPairs;
myVectorOfPairs.push_back({1,2});
myVectorOfPairs.push_back({3,4});
myVectorOfPairs.push_back({5,6});
myVectorOfPairs.push_back({7,8});
for(auto x: myVectorOfPairs){
cout<< x.first << " " << x.second << endl;
}
Example 3: c++ iterate over vector
for(auto const& value: a) {
}
Example 4: for loop vector
for (auto i = v.begin(); i != v.end(); i++)
{
std::cout << *i << endl;
}
Example 5: c++ looping through a vector
for(std::vector<T>::size_type i = 0; i != v.size(); i++) {
v[i].doSomething();
}
Example 6: iterate on vector c++
#include <iostream>
#include <vector>
int main ()
{
std::vector<int> myvector;
for (int i=1; i<=5; i++) myvector.push_back(i);
std::cout << "myvector contains:";
for (std::vector<int>::iterator it = myvector.begin() ; it != myvector.end(); ++it)
std::cout << ' ' << *it;
std::cout << '\n';
return 0;
}