关于Swift Playgrounds 编程问题？

Question

谁会？

Answer 1

include&nbsp;<iostream> #include&nbsp;<stdio.h> int&nbsp;jc(int&nbsp;m){ if(m!=1)&nbsp;return&nbsp;m*jc(m-1); else&nbsp;return&nbsp;1; }&nbsp; int&nbsp;c(int&nbsp;m,int&nbsp;n){ if(m>=n)&nbsp;&nbsp;return&nbsp;jc(m)/(jc(n)*jc(m-n)); }&nbsp;&nbsp;&nbsp;&nbsp; int&nbsp;main(void){ int&nbsp;m,n; scanf("%d%d",&m,&n); printf("%d\n",c(m,n)); return&nbsp;0; }