c++编程求1！+2！+3！+....10！的值

显示全部楼层 · 2007-4-20 20:31:52

自己可以写个程序算一下SUM=0;k=1;for（int i=1;i 1 ? FacSum((x+1)*(y-1), y-1) : x; } int main() { cout << FacSum(10, 10);}

千问 · 2007-4-20 20:31:52

#includeint f(int n){ if(n)return n*f(n-1); else return 1;}void main(){ int sum=0; for(int i=1;i<=10;i++)sum+=f(i); cout<<"sum="<<sum<<endl; }

千问 · 2007-4-20 20:31:52

#include "stdio.h"#include "conio.h"main(){float n,s=0,t=1;for(n=1;n<=10;n++){
t*=n;
s+=t;}printf("1+2!+3!...+10!=%e\n",s);getch();}