Codeforces Gym 100610 Problem E. Explicit Formula 水题
2015-09-05 18:09
411 查看
[b]Problem E. Explicit Formula[/b]
Time Limit: 1 Sec
Memory Limit: 256 MB
就求题目给的那个式子的答案是多少
题解:
ctrl+f 把符号替换一下就好了……
代码:
Time Limit: 1 Sec
Memory Limit: 256 MB
题目连接
http://codeforces.com/gym/100610Description
Consider 10 Boolean variables x1, x2, x3, x4, x5, x6, x7, x8, x9, and x10. Consider all pairs and triplets of distinct variables among these ten. (There are 45 pairs and 120 triplets.) Count the number of pairs and triplets that contain at least one variable equal to 1. Set f(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10) = 1 if this number is odd and f(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10) = 0 if this number is even. Here’s an explicit formula that represents the function f(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10) correctly: f(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10) = (x1 ∨ x2)⊕(x1 ∨ x3)⊕(x1 ∨ x4)⊕(x1 ∨ x5)⊕(x1 ∨ x6)⊕(x1 ∨ x7)⊕ (x1 ∨ x8) ⊕ (x1 ∨ x9) ⊕ (x1 ∨ x10) ⊕ (x2 ∨ x3) ⊕ (x2 ∨ x4) ⊕ (x2 ∨ x5) ⊕ (x2 ∨ x6) ⊕ (x2 ∨ x7) ⊕ (x2 ∨ x8) ⊕ (x2 ∨ x9)⊕(x2 ∨ x10)⊕(x3 ∨ x4)⊕(x3 ∨ x5)⊕(x3 ∨ x6)⊕(x3 ∨ x7)⊕(x3 ∨ x8)⊕(x3 ∨ x9)⊕(x3 ∨ x10)⊕ (x4 ∨ x5) ⊕ (x4 ∨ x6) ⊕ (x4 ∨ x7) ⊕ (x4 ∨ x8) ⊕ (x4 ∨ x9) ⊕ (x4 ∨ x10) ⊕ (x5 ∨ x6) ⊕ (x5 ∨ x7) ⊕ (x5 ∨ x8) ⊕ (x5 ∨ x9)⊕(x5 ∨ x10)⊕(x6 ∨ x7)⊕(x6 ∨ x8)⊕(x6 ∨ x9)⊕(x6 ∨ x10)⊕(x7 ∨ x8)⊕(x7 ∨ x9)⊕(x7 ∨ x10)⊕ (x8 ∨ x9) ⊕ (x8 ∨ x10) ⊕ (x9 ∨ x10) ⊕ (x1 ∨ x2 ∨ x3) ⊕ (x1 ∨ x2 ∨ x4) ⊕ (x1 ∨ x2 ∨ x5) ⊕ (x1 ∨ x2 ∨ x6) ⊕ (x1 ∨ x2 ∨ x7) ⊕ (x1 ∨ x2 ∨ x8) ⊕ (x1 ∨ x2 ∨ x9) ⊕ (x1 ∨ x2 ∨ x10) ⊕ (x1 ∨ x3 ∨ x4) ⊕ (x1 ∨ x3 ∨ x5) ⊕ (x1 ∨ x3 ∨ x6) ⊕ (x1 ∨ x3 ∨ x7) ⊕ (x1 ∨ x3 ∨ x8) ⊕ (x1 ∨ x3 ∨ x9) ⊕ (x1 ∨ x3 ∨ x10) ⊕ (x1 ∨ x4 ∨ x5) ⊕ (x1 ∨ x4 ∨ x6) ⊕ (x1 ∨ x4 ∨ x7) ⊕ (x1 ∨ x4 ∨ x8) ⊕ (x1 ∨ x4 ∨ x9) ⊕ (x1 ∨ x4 ∨ x10) ⊕ (x1 ∨ x5 ∨ x6) ⊕ (x1 ∨ x5 ∨ x7) ⊕ (x1 ∨ x5 ∨ x8) ⊕ (x1 ∨ x5 ∨ x9) ⊕ (x1 ∨ x5 ∨ x10) ⊕ (x1 ∨ x6 ∨ x7) ⊕ (x1 ∨ x6 ∨ x8) ⊕ (x1 ∨ x6 ∨ x9) ⊕ (x1 ∨ x6 ∨ x10) ⊕ (x1 ∨ x7 ∨ x8) ⊕ (x1 ∨ x7 ∨ x9) ⊕ (x1 ∨ x7 ∨ x10) ⊕ (x1 ∨ x8 ∨ x9) ⊕ (x1 ∨ x8 ∨ x10) ⊕ (x1 ∨ x9 ∨ x10) ⊕ (x2 ∨ x3 ∨ x4) ⊕ (x2 ∨ x3 ∨ x5) ⊕ (x2 ∨ x3 ∨ x6) ⊕ (x2 ∨ x3 ∨ x7) ⊕ (x2 ∨ x3 ∨ x8) ⊕ (x2 ∨ x3 ∨ x9) ⊕ (x2 ∨ x3 ∨ x10) ⊕ (x2 ∨ x4 ∨ x5) ⊕ (x2 ∨ x4 ∨ x6) ⊕ (x2 ∨ x4 ∨ x7) ⊕ (x2 ∨ x4 ∨ x8) ⊕ (x2 ∨ x4 ∨ x9) ⊕ (x2 ∨ x4 ∨ x10) ⊕ (x2 ∨ x5 ∨ x6) ⊕ (x2 ∨ x5 ∨ x7) ⊕ (x2 ∨ x5 ∨ x8) ⊕ (x2 ∨ x5 ∨ x9) ⊕ (x2 ∨ x5 ∨ x10) ⊕ (x2 ∨ x6 ∨ x7) ⊕ (x2 ∨ x6 ∨ x8) ⊕ (x2 ∨ x6 ∨ x9) ⊕ (x2 ∨ x6 ∨ x10) ⊕ (x2 ∨ x7 ∨ x8) ⊕ (x2 ∨ x7 ∨ x9) ⊕ (x2 ∨ x7 ∨ x10) ⊕ (x2 ∨ x8 ∨ x9) ⊕ (x2 ∨ x8 ∨ x10) ⊕ (x2 ∨ x9 ∨ x10) ⊕ (x3 ∨ x4 ∨ x5) ⊕ (x3 ∨ x4 ∨ x6) ⊕ (x3 ∨ x4 ∨ x7) ⊕ (x3 ∨ x4 ∨ x8) ⊕ (x3 ∨ x4 ∨ x9) ⊕ (x3 ∨ x4 ∨ x10) ⊕ (x3 ∨ x5 ∨ x6) ⊕ (x3 ∨ x5 ∨ x7) ⊕ (x3 ∨ x5 ∨ x8) ⊕ (x3 ∨ x5 ∨ x9) ⊕ (x3 ∨ x5 ∨ x10) ⊕ (x3 ∨ x6 ∨ x7) ⊕ (x3 ∨ x6 ∨ x8) ⊕ (x3 ∨ x6 ∨ x9) ⊕ (x3 ∨ x6 ∨ x10) ⊕ (x3 ∨ x7 ∨ x8) ⊕ (x3 ∨ x7 ∨ x9) ⊕ (x3 ∨ x7 ∨ x10) ⊕ (x3 ∨ x8 ∨ x9) ⊕ (x3 ∨ x8 ∨ x10) ⊕ (x3 ∨ x9 ∨ x10) ⊕ (x4 ∨ x5 ∨ x6) ⊕ (x4 ∨ x5 ∨ x7) ⊕ (x4 ∨ x5 ∨ x8) ⊕ (x4 ∨ x5 ∨ x9) ⊕ (x4 ∨ x5 ∨ x10) ⊕ (x4 ∨ x6 ∨ x7) ⊕ (x4 ∨ x6 ∨ x8) ⊕ (x4 ∨ x6 ∨ x9) ⊕ (x4 ∨ x6 ∨ x10) ⊕ (x4 ∨ x7 ∨ x8) ⊕ (x4 ∨ x7 ∨ x9) ⊕ (x4 ∨ x7 ∨ x10) ⊕ (x4 ∨ x8 ∨ x9) ⊕ (x4 ∨ x8 ∨ x10) ⊕ (x4 ∨ x9 ∨ x10) ⊕ (x5 ∨ x6 ∨ x7) ⊕ (x5 ∨ x6 ∨ x8) ⊕ (x5 ∨ x6 ∨ x9) ⊕ (x5 ∨ x6 ∨ x10) ⊕ (x5 ∨ x7 ∨ x8) ⊕ (x5 ∨ x7 ∨ x9) ⊕ (x5 ∨ x7 ∨ x10) ⊕ (x5 ∨ x8 ∨ x9) ⊕ (x5 ∨ x8 ∨ x10) ⊕ (x5 ∨ x9 ∨ x10) ⊕ (x6 ∨ x7 ∨ x8) ⊕ (x6 ∨ x7 ∨ x9) ⊕ (x6 ∨ x7 ∨ x10) ⊕ (x6 ∨ x8 ∨ x9) ⊕ (x6 ∨ x8 ∨ x10) ⊕ (x6 ∨ x9 ∨ x10) ⊕ (x7 ∨ x8 ∨ x9) ⊕ (x7 ∨ x8 ∨ x10) ⊕ (x7 ∨ x9 ∨ x10) ⊕ (x8 ∨ x9 ∨ x10) In this formula ∨ stands for logical or, and ⊕ stands for exclusive or (xor). Remember that in C++ and Java these two binary operators are denoted as “||” and “^”. Given the values of x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, calculate the value of f(x1, x2, . . . , x10).Input
The input file contains 10 numbers x1, x2, x3, x4, x5, x6, x7, x8, x9, and x10. Each of them is either 0 or 1.Output
Output a single value — f(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10).Sample Input
1 0 0 1 0 0 1 0 0 1Sample Output
0HINT
题意就求题目给的那个式子的答案是多少
题解:
ctrl+f 把符号替换一下就好了……
代码:
//qscqesze #include <cstdio> #include <cmath> #include <cstring> #include <ctime> #include <iostream> #include <algorithm> #include <set> #include <bitset> #include <vector> #include <sstream> #include <queue> #include <typeinfo> #include <fstream> #include <map> #include <stack> typedef long long ll; using namespace std; //freopen("D.in","r",stdin); //freopen("D.out","w",stdout); #define sspeed ios_base::sync_with_stdio(0);cin.tie(0) #define maxn 110000 #define mod 10007 #define eps 1e-9 #define pi 3.1415926 int Num; //const int inf=0x7fffffff; //§ß§é§à§é¨f§³ const ll Inf=0x3f3f3f3f3f3f3f3fll; inline ll read() { ll x=0,f=1;char ch=getchar(); while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();} while(ch>='0'&&ch<='9'){x=x*10+ch-'0';ch=getchar();} return x*f; } //************************************************************************************* ll x1,x2,x3,x4,x5,x6,x7,x8,x9,x10; int main() { freopen("explicit.in","r",stdin); freopen("explicit.out","w",stdout); cin>>x1>>x2>>x3>>x4>>x5>>x6>>x7>>x8>>x9>>x10; cout<<((x1 || x2)^(x1 || x3)^(x1 || x4)^(x1 || x5)^(x1 || x6)^(x1 || x7)^ (x1 || x8) ^ (x1 || x9) ^ (x1 || x10) ^ (x2 || x3) ^ (x2 || x4) ^ (x2 || x5) ^ (x2 || x6) ^ (x2 || x7) ^ (x2 || x8) ^ (x2 || x9)^(x2 || x10)^(x3 || x4)^(x3 || x5)^(x3 || x6)^(x3 || x7)^(x3 || x8)^(x3 || x9)^(x3 || x10)^ (x4 || x5) ^(x4 || x6) ^ (x4 || x7) ^ (x4 || x8) ^ (x4 || x9) ^ (x4 || x10) ^ (x5 || x6) ^ (x5 || x7) ^ (x5 || x8) ^ (x5 || x9)^(x5 || x10)^(x6 || x7)^(x6 || x8)^(x6 || x9)^(x6 || x10)^(x7 || x8)^(x7 || x9)^(x7 || x10)^ (x8 || x9) ^ (x8 || x10) ^(x9 || x10) ^ (x1 || x2 || x3) ^ (x1 || x2 || x4) ^ (x1 || x2 || x5) ^ (x1 || x2 || x6) ^ (x1 || x2 || x7) ^ (x1 || x2 || x8) ^ (x1 || x2 || x9) ^ (x1 || x2 || x10) ^ (x1 || x3 || x4) ^ (x1 || x3 || x5) ^ (x1 || x3 || x6) ^ (x1 || x3 || x7) ^ (x1 || x3 || x8) ^ (x1 || x3 || x9) ^ (x1 || x3 || x10) ^ (x1 || x4 || x5) ^ (x1 || x4 || x6) ^ (x1 || x4 || x7) ^ (x1 || x4 || x8) ^ (x1 || x4 || x9) ^ (x1 || x4 || x10) ^ (x1 || x5 || x6) ^ (x1 || x5 || x7) ^ (x1 || x5 || x8) ^ (x1 || x5 || x9) ^ (x1 || x5 || x10) ^ (x1 || x6 || x7) ^ (x1 || x6 || x8) ^ (x1 || x6 || x9) ^ (x1 || x6 || x10) ^ (x1 || x7 || x8) ^ (x1 || x7 || x9) ^ (x1 || x7 || x10) ^ (x1 || x8 || x9) ^ (x1 || x8 || x10) ^ (x1 || x9 || x10) ^ (x2 || x3 || x4) ^ (x2 || x3 || x5) ^ (x2 || x3 || x6) ^ (x2 || x3 || x7) ^ (x2 || x3 || x8) ^ (x2 || x3 || x9) ^ (x2 || x3 || x10) ^ (x2 || x4 || x5) ^ (x2 || x4 || x6) ^ (x2 || x4 || x7) ^ (x2 || x4 || x8) ^ (x2 || x4 || x9) ^ (x2 || x4 || x10) ^ (x2 || x5 || x6) ^ (x2 || x5 || x7) ^ (x2 || x5 || x8) ^ (x2 || x5 || x9) ^ (x2 || x5 || x10) ^ (x2 || x6 || x7) ^ (x2 || x6 || x8) ^ (x2 || x6 || x9) ^ (x2 || x6 || x10) ^ (x2 || x7 || x8) ^ (x2 || x7 || x9) ^ (x2 || x7 || x10) ^ (x2 || x8 || x9) ^ (x2 || x8 || x10) ^ (x2 || x9 || x10) ^ (x3 || x4 || x5) ^ (x3 || x4 || x6) ^ (x3 || x4 || x7) ^ (x3 || x4 || x8) ^ (x3 || x4 || x9) ^ (x3 || x4 || x10) ^ (x3 || x5 || x6) ^ (x3 || x5 || x7) ^ (x3 || x5 || x8) ^ (x3 || x5 || x9) ^ (x3 || x5 || x10) ^ (x3 || x6 || x7) ^ (x3 || x6 || x8) ^ (x3 || x6 || x9) ^ (x3 || x6 || x10) ^ (x3 || x7 || x8) ^ (x3 || x7 || x9) ^ (x3 || x7 || x10) ^ (x3 || x8 || x9) ^ (x3 || x8 || x10) ^ (x3 || x9 || x10) ^ (x4 || x5 || x6) ^ (x4 || x5 || x7) ^ (x4 || x5 || x8) ^ (x4 || x5 || x9) ^ (x4 || x5 || x10) ^ (x4 || x6 || x7) ^ (x4 || x6 || x8) ^ (x4 || x6 || x9) ^ (x4 || x6 || x10) ^ (x4 || x7 || x8) ^ (x4 || x7 || x9) ^ (x4 || x7 || x10) ^ (x4 || x8 || x9) ^ (x4 || x8 || x10) ^ (x4 || x9 || x10) ^ (x5 || x6 || x7) ^ (x5 || x6 || x8) ^ (x5 || x6 || x9) ^ (x5 || x6 || x10) ^ (x5 || x7 || x8) ^ (x5 || x7 || x9) ^ (x5 || x7 || x10) ^ (x5 || x8 || x9) ^ (x5 || x8 || x10) ^ (x5 || x9 || x10) ^ (x6 || x7 || x8) ^ (x6 || x7 || x9) ^ (x6 || x7 || x10) ^ (x6 || x8 || x9) ^ (x6 || x8 || x10) ^ (x6 || x9 || x10) ^ (x7 || x8 || x9) ^ (x7 || x8 || x10) ^ (x7 || x9 || x10) ^ (x8 || x9 || x10)) <<endl; }
相关文章推荐
- 如何用JQuery弹出小窗口(是注册页面)提交表单form
- NBUT 1218 You are my brother
- Android 控件之十一:RatingBar评分条
- HDU5399-多校-模拟
- LeetCode || Reverse Integer
- SquidGuard
- 在服务器上排除问题的头五分钟
- 永远不要放弃希望---一个研究生屌丝逆袭的故事
- uvalive5092(找规律)
- TCP/IP网络协议图
- http-guard(基于openresty的web防火墙) | 运维技术 – HackRoad.com
- simhash类的使用
- 说我装13?过来,打屎你!(揭秘程序员装13面具)
- tableView 展示汽车信息 加 索引栏
- URAL 1931 Mixing Chemicals
- 辛星浅析utf8中比较常见的utf8校对集
- java servlet 几种页面跳转的方法及传值
- A. Bear and Elections
- oracle数据文件被误删除后无法启动数据库的解决办法
- 线性规划与网络流 03最小路径覆盖问题