This section contains a brief introduction to the C language. It is intended as a tutorial on the language, and aims at getting a reader new to C started as quickly as possible. It is certainly not intended as a substitute for any of the numerous textbooks on C. 2. write a recursive function FIB (n) to find out the nth element in theFibanocci sequence number which is 1,1,2,3,5,8,13,21,34,55,…3. write the prefix and postfix form of the following infix expressiona + b – c / d + e * f – g * h / i ^ j4. write a function to count the number of nodes in a binary tr
標簽:
introduction
the
contains
intended
上傳時間:
2013-12-23
上傳用戶:liansi
C# BigInteger class. BigInteger.cs is a csharp program. It is the BIgInteger class. It has methods: abs() , FermatLittleTest(int confidence) ,gcd(BigInteger bi) , genCoPrime(int bits, Random rand) , genPseudoPrime(int bits, int confidence, Random rand) , genRandomBits(int bits, Random rand) , isProbablePrime(int confidence) , isProbablePrime() , Jacobi(BigInteger a, BigInteger b) , LucasSequence(BigInteger P, BigInteger Q, BigInteger k, BigInteger n) ,max(BigInteger bi) , min(BigInteger bi) , modInverse(BigInteger modulus) , RabinMillerTest(int confidence) ,
標簽:
BigInteger
class
BIgInteger
program
上傳時間:
2013-12-23
上傳用戶:ynzfm
代入法的啟發示搜索
我的代碼實現是:按照自然語言各字母出現頻率的大小從高到低(已經有人作國統計分析了)先生成一張字母出現頻率統計表(A)--------(e),(t,a,o,i,n,s,h,r),(d,l),(c,u,m,w,f,g,y,p,b),(v,k,j,x,q,z)
,再對密文字母計算頻率,并按頻率從高到低生成一張輸入密文字母的統計表(B),通過兩張表的對應關系,不斷用A中的字母去替換B中的字母,搜索不成功時就回退,在這里回朔是一個關鍵。
標簽:
字母
頻率
搜索
代碼
上傳時間:
2015-10-24
上傳用戶:wanqunsheng