Simple Min stack C++ example that retrieve minimum element in constant time. Logic is very simple. Time complexity to pop a value from the stack is constant. Hence, implementation will use two stacks i.e. one to keep value and another stack to keep minimum value. For implementation STL stack will be used. Logic: Create two […]
Balanced parentheses using stack in C++
Check balanced parentheses using stack in C++ with program example. Problem statement: String of parenthesis is given for example “((())) “ or ({}) etc. and we need to find out if they are balanced. Means, if there are matching pairs or not. for example, ({}) is balanced parentheses and ((((()) is not a balanced parenthesis. […]