You are given a string expression representing a Lisp-like expression to return the integer value of. The syntax for these expressions is given as follows. An expression is either an integer, a let-expression, an add-expression, a mult-expression, or an assigned variable. Expressions always ev...
You are given a stringexpressionrepresenting a Lisp-like expression to return the integer value of. The syntax for these expressions is given as follows. An expression is either an integer, a let-expression, an add-expression, a mult-expression, or an assigned variable. Expressions always evalua...
写一个简易的lisp expr parser,要支持三种表达式: (add x y)表示x+y, (mul x y)表示x * y,(let var1 e1 var2 e2 ... last_expr)表示e1赋给var1, e2赋给var2...最后整个表达式的值为last_expr的值。虽然这里有很多括号,但和之前遇到过的eval basket之类的用stack evaluate常量表达式的题不一样,...
classSolution {public: deque<unordered_map<string,int>>scopes;intevaluate(stringexpression) {intpos=0;returneval(expression, pos); }inteval(conststring&s,int&pos){ scopes.push_front(unordered_map<string,int>());intvalue=0;//return val of current exprif(s[pos]=='(') ++pos;stringtoken=...
Can you solve this real interview question? Parse Lisp Expression - You are given a string expression representing a Lisp-like expression to return the integer value of. The syntax for these expressions is given as follows. * An expression is either a
S-expression(符号表达式)是一种用于表示Lisp编程语言中的数据结构的简洁形式。它由一个符号和零个或多个子表达式组成,其中每个子表达式可以是另一个S-expression或字面值。在Lisp编程中,S-expression扮演着数据表示和操作的基础角色。 例如,一个简单的S-expression可以是这样的:(add 2 3),其中add是一个函数名,而...
0736-Parse-Lisp-Expression/cpp-0736 CMakeLists.txt main.cpp 0737-Sentence-Similarity-II 0739-Daily-Temperatures 0740-Delete-and-Earn 0741-Cherry-Pickup 0746-Min-Cost-Climbing-Stairs 0747-Largest-Number-At-Least-Twice-of-Others 0752-Open-the-Lock 0765-Couples-Holding-Hand...
lisp s-expression land-of-lisp 1. 《Practical Common Lisp》 2. 《ANSI Common Lisp》 3. 《On Lisp》 4. 《Common Lisp: A Gentle Introduction to Symbolic Computation》 5. 《The Little Schemer》 6. 《The Seasoned Schemer》 7. 《The Scheme Programming Language》 8. 《Structure and ...
Rust Lisp expression parser and serializer. Contribute to rotty/lexpr-rs development by creating an account on GitHub.
Unlike the loops in nearly every other programming language in use today, theLOOPin Common Lisp can be used as an expression: (let ((doubled (loop for x from 1 to 10 collect (* 2 x))) doubled) ;; ==> (2 4 6 8 10 12 14 16 18 20) (...