notes breakpush(&stackinfix[ ])else if (infix[ =')'/if current operator is right parenthesis *while ( top_ch stacktop(&stack)/get tos *if top_ch ='\ /no stack left *printf("\ninvalid infix expression\ ")/*print_msg();*exit( )else if top_ch !'(postfix[ ++top_chpop(&stack)else pop(&stack)breakcontinuepostfix[ '\ 'int isoperator(char /determine if is an operator *if ='+| ='-| ='*| ='/| ='%| ='^return lovely professional university