プログラマ専用SNS ミクプラ

コード:

int func_z(int dimx[], int c, int d){
	int y;
	cout << "cに代入する値を入力してください\n";
	cin >> c;

	cout << "dに代入する値を入力してください。\n";
	cin >> d;

	cout << "dimx[0]に代入する値を入力してください\n";
	cin >> dimx[0];

	cout << "dimx[1]に代入する値を入力してください\n";
	cin >> dimx[1];

	return 0;
}

int main(){
	int a = 0;
	int b = 0;
	int dima[2] = { 0, 0 };
	int ret_value;

	cout << "初期状態\n";
	cout << "aの値は=" << a << "\n";
	cout << "bの値は=" << b << "\n";
	cout << "dima[0]の値は=" << dima[0] << "\n";
	cout << "dima[1]の値は=" << dima[1] << "\n";
	cout << "*************************\n";
	
	a = 10;
	b = 20;
	dima[0] = 10;
	dima[1] = 20;

	cout << "メイン内部では代入後\n";
	cout << "aの値は=" << a << "\n";
	cout << "bの値は=" << b << "\n";
	cout << "dima[0]の値は=" << dima[0] << "\n";
	cout << "dima[1]の値は=" << dima[1] << "\n";
	cout << "************************\n";


	ret_value = func_z(dima, a, b);

	cout << "関数呼び出し後\n";
	cout << "aの値は=" << a << "\n";
	cout << "bの値は=" << b << "\n";
	cout << "dima[0]の値は=" << dima[0] << "\n";
	cout << "dima[1]の値は=" << dima[1] << "\n";
	cout << "*********************\n";

	system("pause");
	return 0;
}

コード:

#include <iostream>
using namespace std;

void swap(int a, int b)
{
    int t;

    t = a, a = b, b = t;
}

int main(void)
{
    int a = 100, b = 200;

    cout << "【交換前】" << endl;
    cout << "a=" << a << ", b=" << b << endl;
    swap(a, b);
    cout << "【交換後】" << endl;
    cout << "a=" << a << ", b=" << b << endl;
    return 0;
}

コード:

#include <iostream>
using namespace std;

void swap(int *a, int *b)
{
    int t;

    t = *a, *a = *b, *b = t;
}

int main(void)
{
    int a = 100, b = 200;

    cout << "【交換前】" << endl;
    cout << "a=" << a << ", b=" << b << endl;
    swap(&a, &b);
    cout << "【交換後】" << endl;
    cout << "a=" << a << ", b=" << b << endl;
    return 0;
}

コード:

#include <iostream>
using namespace std;

void swap(int &a, int &b)
{
    int t;

    t = a, a = b, b = t;
}

int main(void)
{
    int a = 100, b = 200;

    cout << "【交換前】" << endl;
    cout << "a=" << a << ", b=" << b << endl;
    swap(a, b);
    cout << "【交換後】" << endl;
    cout << "a=" << a << ", b=" << b << endl;
    return 0;
}