How do I merge and splice sequences with std::stack?

In C++, merging and splicing sequences can be efficiently handled using the std::stack container from the Standard Template Library (STL). A stack operates on a Last In, First Out (LIFO) principle and allows for managing collections of items where you may need to combine or transfer elements from one stack to another.

Merging Stacks

To merge two stacks, you can pop elements from the source stack and push them onto the destination stack.

Splicing Stacks

Splicing generally refers to moving elements from one container to another without copying them. In a stack context, you can achieve this by transferring elements using pop and push operations.

Example:

<?php #include <stack> #include <iostream> using namespace std; int main() { stack stack1; stack stack2; // Pushing elements onto stack1 stack1.push(1); stack1.push(2); stack1.push(3); // Pushing elements onto stack2 stack2.push(4); stack2.push(5); // Merging stack1 into stack2 while (!stack1.empty()) { stack2.push(stack1.top()); stack1.pop(); } // Displaying elements of stack2 after merging while (!stack2.empty()) { cout << stack2.top() << " "; stack2.pop(); } return 0; } ?>

C++ std::stack merging stacks splicing stacks STL C++ stack example C++ stack operations

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