用递归方法编写函数fibonacci,该函数的功能是求fibonacci的前n项

为用了很没有效率的递归,所以出结果有点慢#includeiostream.h

#includelongintf(intn){if(n==0)return0;elseif(n==1)return1;elsereturnf(n-1)+f(n-2);}intmain

c:intfib(intn){return(n

// C++int F(int n) {if (n == 0) return 1;else if

把以下程序另存为fib.m%>>fib(8)Fibonacci=123456781123581321

然后是用递归逆转输出数字的.programReverseNum;varnum:integer;procedurefun(n:integer);beginifn1thenbeginwrite(nmod1

#includedoubleH(intn,doublex){if(x>1){if(n==0)return1.0;//H0(x)=1;if(n==1)return2.0*x;//H1(x)=2x;//直

#includeusingnamespacestd;doublefun(intn,doubleh){if(n==1)returnh;elseif(n再问：usingnamespacestd;这句

#includeusingnamespacestd;doublepnx(int,double);intmain(){doublen,x;coutx;cout再问：谢谢能加个好友吗给个q也行以后请多指教

#includelongfac(intn){inti;longx=1;for(i=2;i再问：谢谢咯！可是我说的是递归法哦！再答：#includelongfac(intn){if(n==0)retur

#includeusingnamespacestd;intexc(inta,intb)//这个时候参数不分大小{if(a>b)//确保第二个数是大数{intc;c=a;a=b;b=

/>#includeusingnamespacestd;longunsignedfun(intn){if(n>1)returnn*fun(n-1);return1;}voidmain(){intn;c

#includelongfib(intn){inta;if(n==1)a=1;elseif(n==2)a=1;elsea=fib(n-1)+fib(n-2);returna;}voidmain(){\

#include#includefloatmyfunction(intn,intx){if(0==n){return1;}elseif(1==n){returnx;}else{return((2*n-

functiongqj=erfen(p,a,b,e)ifabs(b-a)

你这里的斑块其实就是连通域.MATLAb自带计算连通域个数的函数：bwlabel.% 返回x中连通域个数function n = f( x 

1.#include"stdio.h"//#defineRECURSION1#ifdefRECURSIONlongfact(intn){if(n

//---------------------------------------------------------------------------#includeusingnamespaces

#includeusingnamespacestd;longunsignedfun(intn){if(n>1)returnn*fun(n-1);return1;}voidmain(){intn;cou

//fibonacci数列:11235813213455...#includedoublefib_val[100]={0};doublefibonacci_1(intn)//递归,计算时间长,n最好不