题目: Implement a basic calculator to evaluate a simple expression string. The expression string contains only non-negative integers, +, -, *, / operators and empty spaces . The integer division should truncate toward zero. You may assume that the give…

题目: Implement a basic calculator to evaluate a simple expression string. The expression string may contain open ( and closing parentheses ), the plus + or minus sign -, non-negative integers and empty spaces . You may assume that the given expression…

Implement a basic calculator to evaluate a simple expression string. The expression string contains only non-negative integers, +, -, *, / operators and empty spaces . The integer division should truncate toward zero. You may assume that the given ex…

Implement a basic calculator to evaluate a simple expression string. The expression string may contain open ( and closing parentheses ), the plus + or minus sign -, non-negative integers and empty spaces . You may assume that the given expression is…

Implement a basic calculator to evaluate a simple expression string. The expression string contains only non-negative integers, +, -, *, / operators and empty spaces . The integer division should truncate toward zero. You may assume that the given ex…

声明 以下内容取材于 Bob Tabor 的课程<Windows Phone 8.1 Development for Absolute Beginners>,链接地址为:http://www.microsoftvirtualacademy.com/training-courses/windows-phone-8-1-development-for-absolute-beginners 前言 Universal App是一种跨平台的应用开发,目前主要面向Windows和Windows Phone…

Calculator(1.5) Github链接 ps.负数的处理未完成 解题过程中遇到的困难和解决 <stack>的使用: 认真研究了栈,基本上掌握了用法,与<queue>的区别就是队列中可以直接访问首元素而栈并不能.(debug过程让我深深体会到了使用s.pop()时一定要确认是否为空栈!!!!!) <sstream>的使用 <sstream>用起来比较简单,网上查了资料就可以用了,注意点就是多次转化时要记得stream.clear,不然容易出错. 后缀…

Calculator(1.0) Github链接 解题过程中遇到的困难 对于c++中类和对象的使用不够明确,看了c++的视频教程学会了用类和对象来写程序. 不会使用<queue>,在网上查阅资料,初步了解了<queue>的用法. 实在用不来指针orz,在对输入的数据进行处理时,只好全程用数组. 处理数字时,一开始对于一位以上数字的处理过于繁琐,问了同学才知道<string>可以相加,这样就可以方便地存储一位以上的数字. 忽略了对小数点的处理,在判断数字或符号时加上一个对…

题目:https://leetcode.com/problems/basic-calculator/ Implement a basic calculator to evaluate a simple expression string. The expression string may contain open ( and closing parentheses ), the plus + or minus sign -, non-negative integers and empty sp…

#include <stdio.h> #include <stdlib.h> typedef enum { FALSE = , TRUE }BOOL; void calculator(void); int main(void) { char y = ' '; y = 'y'; while('y' == y) { printf("start calculator:\n"); calculator(); printf("restart?,printf 'y…