力扣leetcode-cn.com/problems/basic-calculator/ 题目描述 给你一个字符串表达式 s ,请你实现一个基本计算器来计算并返回它的值。 示例1: 输入:s = "1 + 1" 输出:2 示例2: 输入:s = " 2-1 + 2 " 输出:3 示例3: 输入:s = "(1+(4+5+2)-3)+(6+8)" 输出:23提示...
力扣224.基本计算器 力扣leetcode-cn.com/problems/basic-calculator/ 题目描述 实现一个基本的计算器来计算一个简单的字符串表达式的值。 字符串表达式可以包含左括号 ( ,右括号 ),加号 + ,减号 -,非负整数和空格 。 示例1: 输入: "1 + 1" 输出: 2 示例2: ...
intn2,charc)11{12intans =0;13switch(c)14{15case'+':16ans = n1+n2;17break;18case'-':19ans = n1-n2;20break;21}22returnans;23}2425intcalculate(strings)26{27stack<char>ops;28stack<int>numbers;29ops.push('(');30s.push_back(')...
难度简单142 字符串压缩。利用字符重复出现的次数,编写一种方法,实现基本的字符串压缩功能。比如,字符串aabcccccaaa会变为a2b1c5a3。若“压缩”后的字符串没有变短,则返回原先的字符串。你可以假设字符串中只包含大小写英文字母(a至z)。 示例1: 输入:"abbccd"输出:"abbccd"解释:"abbccd"压缩后为"a1b2c2d...
原题链接在这里:https://leetcode.com/problems/basic-calculator/ 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 ...
转载自:LeetCode Question Difficulty Distribution 1 Two Sum 2 5 array sort set Two Pointers 2 Add Two Numbers 3 4 linked list Two Pointers Math 3 Longest Substring Without Repeating Characters 3 2 string Two Pointers hashtable 4 Median of Two Sorted Arrays 5 3 array Binary Search 5 Longest ...
【LeetCode】227. Basic Calculator II 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/basic-calculator-ii/description/ 题目描述: Implement a basic calculator to evaluate a simple expression string...
224. 基本计算器 - 给你一个字符串表达式 s ,请你实现一个基本计算器来计算并返回它的值。 注意:不允许使用任何将字符串作为数学表达式计算的内置函数,比如 eval() 。 示例 1: 输入:s = "1 + 1" 输出:2 示例 2: 输入:s = " 2-1 + 2 " 输出:3 示例 3:
Parts of the problems don't provide C interface for solution, so I accomplished them with C++ Language. CompileCfiles using command: CompileC++files using command: g++ -std=c++11 -Wall src/bar.cpp -o bar OR You can build all the files usingmake(Use MinGW GCC and GNU Make on Windows)....
227.Basic-Calculator-II (H-) 772.Basic-Calculator-III (H) 385.Mini-Parser (H) 439.Ternary-Expression-Parser (H-) 591.Tag-Validator (H) 726.Number-of-Atoms (M+) 1087.Brace-Expansion (H) 1096.Brace-Expansion-II (H) 1106.Parsing-A-Boolean-Expression (H-) 1896.Minimum-Cost-to-Change...