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            "questionFrontendId": "1597",
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            "title": "Build Binary Expression Tree From Infix Expression",
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            "exampleTestcases": "\"3*4-2*5\"\n\"2-3/(5*2)+1\"\n\"1+2+3+4+5\"",
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                    "name": "String",
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                    "name": "Tree",
                    "slug": "tree",
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                    "name": "Binary Tree",
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                "Convert infix expression to postfix expression.",
                "Build an expression tree from the postfix expression."
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