//array型別
#include <iostream>
#include <string>
#include<vector>;
using namespace std;

void main() 
{
	int iAy_add = 0;
	const int iAy_size = 10;//表示式必須含有常量值
	int iArray[iAy_size];//array也像c-style一樣大小固定，但是不同的是array並沒有像null字元那樣所謂的“標兵”——用來表示已達到末端。
	int user_size;

	cout << "plesae input your seq size " << endl;
	cin >> user_size;
	cout << "plesae input your seq " << endl;

	for (int i = 0; i <= user_size; i++)
	{
		cin >> iArray[i];
	}
	for (int i = 0; i <= user_size; i++)
	{
		cout << iArray[i]<<' ';
		iAy_add += iArray[i];//簡寫的很棒哦
		
	}
	cout << iAy_add << endl;
	int average = iAy_add / (user_size+1);
	cout << average << endl;
	int c;
	cin >> c;	
}


//vector型別
#include <iostream>
#include <string>
#include<vector>;
using namespace std;

void main()
{
	vector<int> ivec;
	cout << ivec.size() <<endl;
	int ival;
	int sum=0;
	int a = 1;
	while (a==1)
	{
		cin >> ival;
		ivec.push_back(ival);//push_back作用為在vector尾部加入一個數據；string也有這種用法，作用為在字串尾部加入一個字元
		if (ival == 0)
			a=0;
	 }
	for (int ix = 0; ix < ivec.size(); ++ix)
	{
		sum += ivec[ix];
	}
	int average = sum / (ivec.size()-1);	
	cout << "sum of" << ivec.size()-1
		<< " elements:" << sum
		<< ". Average:" << average << endl;
	int c;
	cin >> c;
}