Problems on Stacks

**Infix to Postfix Conversion****Infix to Prefix Conversion****Prefix to Infix Conversion****Prefix to Postfix Conversion****Postfix to Infix Conversion****Postfix to Prefix Conversion****Check whether given Parentheses String are Balanced Parentheses or Not.****Next Greater Element****Find Minimum number of bracket reversals required to make an expression balanced.****Implement Queue Using Two Stacks.****Merge Overlapping Intervals using Stacks****Implement Stack Using Linked List****Largest Rectangular Area in Histogram****Length of Longest Valid Substring****Reverse a String using Stack****Implement two stacks in a single array****Print Bracket Number****Next Greater Frequency Element****Sort a Stack using Temporary Stack****Stock Span Problem**