# Status Problem Level Completes Likes 1 Evaluation of Prefix Expressions (Polish Notation) | Set 1 Medium % 0 2 Evaluation of Postfix Expressions (Polish Postfix notation) | Set 2 Medium % 0 3 Evaluation of Postfix Expressions (Polish Postfix notation) | Set 1 Medium % 0 4 Check if Arithmetic Expression contains duplicate parenthesis Medium % 0 5 Convert Prefix to Postfix Expression Medium % 0 6 Convert Postfix to Prefix Expression Medium % 0 7 Convert Postfix to Infix Expression Medium % 0 8 Convert Infix to Prefix Expression Medium % 0 9 Convert Infix to Postfix Expression Medium % 0 10 Evaluation of Infix expressions Medium % 0 11 Convert Prefix to Infix Expression Medium % 0 12 Infix, Postfix and Prefix Notations/Expressions Beginner % 0 Evaluation of Prefix Expressions (Polish Notation) | Set 1 Evaluation of Postfix Expressions (Polish Postfix notation) | Set 2 Evaluation of Postfix Expressions (Polish Postfix notation) | Set 1 Check if Arithmetic Expression contains duplicate parenthesis Convert Prefix to Postfix Expression Convert Postfix to Prefix Expression Convert Postfix to Infix Expression Convert Infix to Prefix Expression Convert Infix to Postfix Expression Evaluation of Infix expressions Convert Prefix to Infix Expression Infix, Postfix and Prefix Notations/Expressions 1
