d4r03.cpp

来自「工程算法 这是一个很有用的工程数值算法集锦」· C++ 代码 · 共 39 行

#include <iostream.h>
#include <math.h>
#include <iomanip.h>
#include <stdlib.h>
#include <fstream.h>
#include <string>

void main()
{
    //program d4r3
    //driver for routine bico
	int i,nval,tt;
	int n,k,binco;
	char text[20];
    fstream fin;
    fin.open("d:\\vc常用数值算法集\\data\\fncval.dat",ios::in);
    while (strcmp(text,"Binomial")!=0)
	{
      fin>>text;
	} 
    cout<<"Binomial coefficients "<<endl;
    fin>>text;
	fin>>nval;
	fin>>text;
    cout<<endl;
    cout<<"     n       k      Actual     bico(n,k)"<<endl;
    for( i = 1;i<=nval;i++)
	{
        fin>>n;
		fin>>k;
		fin>>binco;
        cout<<setw(6)<<n;
        cout<<setw(8)<<k;
        cout<<setw(12)<<binco;
		tt=bico(n,k)+1;
        cout<<setw(12)<<tt<<endl;
	}
}