题目内容
假定n=2,下列程序的运行结果是 。#include using namespace std;int fun(int m);void main() {cout << "please input a number :";int n, s = 0;cin >> n;s = fun(n);cout << s << endl;}int fun(int m){int p =1, s = 0;for (int i = 1; i <= m; i++){p *= i;s += p;}return s;}
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