Stack has many usages in modern day applications. Whether in browser histories or in the popular development term stack trace, stack is used everywhere. Now we are going to try to solve a real-world problem using stack.
Real life usage of stack
Nested parentheses matching
When we are solving mathematical expressions, the first thing we need to consider is the correctness of nested parentheses. If the parentheses are not nested properly, then calculation might not be possible, or may be wrong. Let us look at some examples:
From the preceding expressions, only the first one is correct; the other two are incorrect, as the parentheses are not nested properly. In order to identify whether or not the parentheses are nested, we...
