C++ vector Deleting a Range of Elements Question

Introduction

Write a program that defines a vector of integers.

Erase the range of 3 elements starting from the beginning of the vector.

Print out the vector content using the range-based loop.

You can use the following code structure: 

#include <iostream> 

int main() 
{ 

} 



#include <iostream> 
#include <vector> 

int main() 
{ 
    std::vector<int> v = { 10, 5, 8, 4, 1, 2 }; 
    v.erase(v.begin(), v.begin() + 3); // erase the first 3 elements 

    for (auto el : v) 
    { 
        std::cout << el << '\n'; 
    } 
}

In this case the erase() function overload accepts two arguments.

One is the beginning of the range to be deleted.

In our case, it is marked with v.begin().

The second argument is the end of the range to be deleted.

In our case, it is the v.begin() + 3 iterator.

Instead of .begin() member function we could have used a freestanding std::begin(v) function.




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