POJ 2106 Boolean Expressions】的更多相关文章

Description The objective of the program you are going to produce is to evaluate boolean expressions as the one shown next: Expression: ( V | V ) & F & ( F | V )where V is for True, and F is for False. The expressions may include the following ope…
总时间限制: 1000ms  内存限制: 65536kB 描述 The objective of the program you are going to produce is to evaluate boolean expressions as the one shown next:  Expression:( V | V ) & F & ( F | V ) where V is for True, and F is for False. The expressions may incl…
/* * POJ_2106.cpp * * Created on: 2013年10月30日 * Author: Administrator */ #include <iostream> #include <cstdio> using namespace std; const int maxn = 110; int op[maxn], otop; int val[maxn],vtop; void insert(int b){//将操作数b压入操作数栈val while(otop &a…
题意:关于!,&,| 的运算,表达式中V代表true,F代表false. 思路:见代码吧,很详细了. 要注意 !!!F,!(...) 的情况. #include <iostream> #include <stdio.h> #include <stack> #include <string.h> #include <map> using namespace std; ; stack<int> val; //存储操作数和中间运算结…
#include<cstdio> const int maxn=100 +10; int val[maxn],vtop; int op[maxn],otop; void insert(int b) { while(otop &&op[otop-1]==3) { b=!b; --otop; } val[vtop++]=b; } void calc(void) { int b=val[--vtop]; int a=val[--vtop]; int opr=op[--otop]; i…
The objective of the program you are going to produce is to evaluate boolean expressions as the one shown next: Expression: ( V | V ) & F & ( F | V ) where V is for True, and F is for False. The expressions may include the following operators: ! f…
总时间限制: 1000ms  内存限制: 65536kB 描述The objective of the program you are going to produce is to evaluate boolean expressions as the one shown next: Expression: ( V | V ) & F & ( F | V )where V is for True, and F is for False. The expressions may includ…
Boolean Expressions Time Limit: 1000MS   Memory Limit: 30000K       Description The objective of the program you are going to produce is to evaluate boolean expressions as the one shown next: Expression: ( V | V ) & F & ( F | V )where V is for Tru…
https://stackoverflow.com/questions/2802055/what-does-the-construct-x-x-y-mean -------------------------------------------------------- What is the double pipe operator (||)? The double pipe operator (||) is the logical OR operator . In most language…
Boolean Expressions 首先声明此题后台可能极水(毕竟这种数据不好造!).昨天写了一天却总是找不到bug,讨论区各种数据都过了,甚至怀疑输入有问题,但看到gets也可以过,难道是思路错了? 题意:V表示ture,F表示false,然后有三种位运算符'!'.'&'.'|'.其中'!'的优先级最高,'|'的优先级最低.即优先级关系:! > & > | .给你一串包含这些运算符的表达式当然了还有括号,要你判断最终结果是VorF. 先说说我的思路吧:符号栈和数值栈肯定是…