C++ Program

(Match grouping symbols) A C++ program contains various pairs of grouping symbols, such as the following:

Parentheses: ( and ) .

Braces: { and } .

Brackets: [ and ] .

Note that the grouping symbols cannot overlap. For example, (a{b)} is illegal.

Write a program that checks whether an expression (in which contained the symbol above) has correct pairs of grouping symbols. Here are some sample runs:

A. Enter an expression: {8 < h l (g}) Unbalanced grouping

B. Enter an expression: {8 < h l (g)} Balanced grouping

C. Enter an expression: {8 < h l (g{ Unbalanced grouping