gen_fib.cpp

最新推荐文章于 2024-08-26 06:30:00 发布

CCodes

最新推荐文章于 2024-08-26 06:30:00 发布

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分类专栏： G 文章标签： numbers vector iterator iostream algorithm integer

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#ifdef __BCPLUSPLUS__
#include <iostream.h>
#include <vector.h>
#include <algorith.h>
#else
#include <iostream>
#include <vector>
#include <algorithm>
#endif

using namespace std;

//return the next Fibonacci number in the Fibonacci series.
int Fibonacci(void)
{
static int r;
static int f1 = 0;
static int f2 = 1;
r = f1 + f2;
f1 = f2;
f2 = r;
return f1;
}

void main(void)
{
const int VECTOR_SIZE = 15;

//Define a template class vector of integers
typedef vector<int> IntVector;

//Define a iterator for template class vector of integer
typedef IntVector::iterator IntVectorIt;

IntVector Numbers(VECTOR_SIZE); //vector containing numbers
IntVectorIt start, end , it;
int i;

//Initialize vector Numbers
for(i = 0; i < VECTOR_SIZE; i++)
  Numbers[i] = i * i;
start = Numbers.begin(); //location of first element of Numbers
end = Numbers.end();  //one past the location of the last elememt of Numbers
cout << "Before calling generate_n" << endl;
//print content of Numbers
cout << "Numbers { ";
for (it = start; it != end; it++)
  cout << *it << " ";
cout << " }/n" << endl;

//fill the specified range with a series of
//Fibonacci numbers using the Fibonacci function
generate_n(start + 5, Numbers.size() - 5, Fibonacci);

cout << "After calling generate_n" << endl;

//print content of Numbers
cout << "Numbers {";
for (it = start; it != end; it++)
cout << *it << " ";
cout << " }/n" << endl;
}