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C++ Vector pop_back()It deletes the last element and reduces the size of the vector by one. SyntaxConsider a vector v.Syntax would be: v.pop_back(); ParameterIt does not contain any parameter. Return valueIt does not return any value. The following illustration show how pop_back() function works : This illustration shows how last element of the vector is deleted using pop_back() function. ExampleLet's see a simple example. #include<iostream> #include<vector> using namespace std; int main() { vector<string> v{"welcome","to","javaTpoint","tutorial"}; cout<<"Initial string is :"; for(inti=0;i<v.size();i++) cout<<v[i]<<" "; cout<<'\n'; cout<<"After deleting last string, string is :"; v.pop_back(); for(int i=0;i<v.size();i++) cout<<v[i]<<" "; return 0; } Output: Initial string is :welcome to javaTpoint tutorial After deleting last string, string is :welcome to javaTpoint In this example, last string is being removed using pop_back() function.
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