answersLogoWhite

0

The vector's push_back() member inserts one or more new elements at the end -- the back -- of the vector. If there are insufficient unused elements available, the underlying array is reallocated with a larger reserve and the existing elements moved to the new allocation, after which the new elements are appended. All iterators into the vector are rendered invalid after a reallocation.

User Avatar

Wiki User

7y ago

What else can I help you with?

Related Questions

What is the time complexity of the vector push back operation in C?

The time complexity of the vector push back operation in C is O(1) on average, meaning it takes constant time to add an element to the end of the vector.


If vector c equals vector a plus vector b under what circumstances does c equal a minus b?

When b is zero.


Algorithm of push and pop in c plus plus?

pop push c++ programming


How do you add n numbers by using c plus plus?

If you're reading the numbers sequentially, keep a running total. Alternatively, pass all the numbers to a function using a variable-length argument. Alternatively push the numbers into a vector then sum the vector with the following function: void sum_vector(std::vector<int> a) { int total=0; for(int i=0; i<a.size(); ++i) total+=a[i]; return(total); }


Represent a stack in c plus plus?

Use a vector with a base class type. Any objects derived from the base class can be pushed and popped from the vector just as you would from a stack.


C plus plus program that prints out multiplication of n given numbers?

Push all the numbers into a suitable vector then call this function: template<typename T> long long product(std::vector<T> v) { assert(v.size()>1); T total = 0; std::vector<T>::const_iterator i=v.begin(); total = (*i); while( ++i!= v.end() ) total *= (*i); return(total); } Alternatively, use a variable arguments list.


When does vector c equal a plus b?

If the vectors a and b are arranged so that the head of a (the arrow bit) is at the tail of b, then c must be from the tail of a to the head of b. The vectors a and b can be swapped since vector addition is commutative.


C plus plus file processing that will input 12 integers?

#include<iostream> #include<vector> int main() { std::vector<int> integers (12); for (size_t loop=0; loop<integers.size(); ++loop) cin >> integers[loop]; }


How do you write a c plus plus program to sort a vector of strings using MSD radix sort?

The standard library sort algorithm automatically uses MSD radix to sort strings: std::vector<std::string> vs = {"a", "b", "c" "d", "ab"}; std::sort(vs.begin(), vs.end()); After sorting, the order will be: {"a", "ab", "b", "c", "d"}


If vector A has a magnitude of 14 meters and vector B has a magnitude of 6 meters Vector C equals A-B The magnitude of C cannot be?

The magnitude of C cannot be >20.


Wap to print table of any number in c plus plus?

#include<iostream> #include<vector> template<typename T> void print_table(std::vector<T> table) { for (auto i : table) std::cout << i << std::endl; } int main() { std::vector<int> table = {1,5,9,3,5,2,9}; print_table (table); }


If vector A is perpendicular to vector B and C then Vector A is parallel to?

Vector A is parallel to the cross product of vectors B and C, and it is parallel to the axis that neither B or C lie along if the two other axes are defined as the axes that B and C lie along.