C/C++の宿題片付けます 127代目

C/C++の宿題片付けます 127代目 at TECH

66:デフォルトの名無しさん
09/06/09 15:51:25
>>62
#include <iostream>
using namespace std;

template<class T, int N> class Counting {
T* array_;
public:
Counting(T* Array) { array_ = Array; }
T sum()
{
T result = 0; for (int i = 0; i < N; ++i) result += array_[i];
return result;
}
T ave() { return sum() / N; }
void modify(int index, T value) { array_[index] = value; }
};
int main()
{
const int s1 = 5, s2 = 3;
int a[s1] = { 1, 2, 3, 4, 5 };
Counting<int, s1> ca(a);
cout << ca.sum() << " " << ca.ave() << "\n";
ca.modify(2, 10);
cout << ca.sum() << " " << ca.ave() << "\n";

double b[s2] = { 1.2, 2.5, 3.5 };
Counting<double, s2> cb(b);
cout << cb.sum() << " " << cb.ave() << "\n";
cb.modify(1, 4.8);
cout << cb.sum() << " " << cb.ave() << endl;
return 0;
}

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