games

create a robot, it can handle commands as below;
"L" -> turn left
"R" -> turn right
"M" -> forward
"B" -> back

place it on a 2D map(x*y), and pass commands "LLRRLLMMBRL" to this robot, then the robot will move to the target place

example:

games

题目一：
给你一个数学表达式，字符串形式的，只有简单的+-*/操作符，你计算出这个数学表达式的结果
input> "10*2-(2+5)"
output> 10

题目二：
把上面的程序改成可以支持S表达式
input>  (- (* 10 2) (+ 2 5))
output> 10

games

module M4 =
    type Result<'Success, 'Failure> =
    | Success of 'Success
    | Failure of 'Failure

    type Request = {Name: string; Password: string; NewName: string}

    let Process request =
        match request with
        | {Name = ""} -> Failure "Name must not be blank"

games

using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Threading.Tasks;

namespace mathexpression {

    interface Term {

games

class Manipulate2d {
  CanvasElement _canvas;
  RenderingContext _gl;
  int _positionAttri, _translationAttri, _rotationAttri, _scaleAttri;
  Buffer _vertexBuffer, _translationBuffer, _rotationBuffer, _scaleBuffer, _indicesBuffer;
  UniformLocation _resolutionUniform;
  
  Manipulate2d(c) {
    _canvas = c;
    _gl = _canvas.getContext3d(preserveDrawingBuffer: true);