combinat.cpp

来自「it is a simualtion of a game」· C++ 代码 · 共 25 行

#include<stdio.h>
#include<conio.h>
long int combination (int,int);
int main()
{
clrscr();
int x,y;
long int z;
printf ("Enter a x of C:");
scanf ("%d",&x);
printf ("Enter a y of C:");
scanf ("%d",&y);
z=combination(x,y);
printf ("%ld",z);
getch();
return 0;
}
long int combination(int n,int k)
{
if (n==k||k==0)
return 1;
else
return combination(n-1,k)+combination(n-1,k-1);
}