c0.cpp

#include <iostream>

using namespace std;

int main(int argc, char const *argv[])
{
	char str1[] = "All work and no play makes Jack a dull boy";
	char str2[] = "All work and no play\0 makes Jack a dull boy";
	char str3[] = "All work";

	str3[8] = 'z';

	char str4[] = {'n','o',' ','p','l','a','y','\0'};

	str4[7] = ' ';

	cout << str1 << endl << str2 << endl;
	cout << str3 << endl << str4 << endl;
	
	return 0;
}
/*
All work and no play makes Jack a dull boy
All work and no play
All workz=b�
no play �r�@&
*/

t0.cpp

#include <iostream>

using namespace std;

int main(int argc, char const *argv[])
{
	for (int i = 0; i < argc; ++i)
	{
		cout << argv[i] << endl;
		cout << *argv[i] << endl;
		cout << &argv[i] << endl;
	}

	return 0;
}
/*
 ~/.../cpp/tablice  ./t0 aaaa bbb cc d
./t0
.
0x7ffeec36f768
aaaa
a
0x7ffeec36f770
bbb
b
0x7ffeec36f778
cc
c
0x7ffeec36f780
d
d
0x7ffeec36f788
*/

t1.cpp

#include <iostream>

using namespace std;

int main(int argc, char const *argv[])
{
	char str1[] = "No play";
	char *str2 = str1;

	cout << str1 << endl << str2 << endl;
	str2[2] = '-';
	cout << str1 << endl << str2 << endl;

	return 0;
}
/*
No play
No play
No-play
No-play
*/

t2.cpp

#include <iostream>

using namespace std;

void fun_1(int *arr) {
	arr[0] += 1;
	cout << &arr << endl;
	return;
}

void fun_2(int arr[]) {
	arr[2] -= 1;
	cout << &arr << endl;
	return;
}

int main(int argc, char const *argv[])
{
	int arr[] = {1, 2, 3};

	for (int i = 0; i < 3; ++i)
	{
		cout << arr[i];
	}
	cout << endl;

	fun_1(arr);
	fun_2(arr);

	for (int i = 0; i < 3; ++i)
	{
		cout << arr[i];
	}
	cout << endl;
	
	return 0;
}
/*
123
0x7fffd8ed8a88
0x7fffd8ed8a88
222
*/

t3.cpp

#include <iostream>

using namespace std;

int main(int argc, char const *argv[])
{
	char str1[] = "No play";
	cout << str1 << endl << &*str1 << endl;
	cout << *str1 << endl << &str1 << endl;

	char *str2 = str1;
	cout << str2 << endl << &*str2 << endl;
	cout << *str2 << endl << &str2 << endl;

	return 0;
}

/*
No play
No play
N
0x7fff6b12b4d0
No play
No play
N
0x7fff6b12b4c8
*/

t4.cpp

#include <iostream>

using namespace std;

int main(int argc, char const *argv[])
{
	char str1[] = "No play";
	cout << str1 << endl << &*str1 << endl;
	cout << *str1 << endl << &str1 << endl;
	
	for (int i = 0; i < 7; ++i) cout << str1[i];
	cout << endl;

	for (int i = 0; i < 10; ++i) cout << str1[i];
	cout << endl;

	int arr1[] = {1, 2, 3, 4, 5, 6 ,7};
	cout << arr1 << endl << &*arr1 << endl;
	cout << *arr1 << endl << &arr1 << endl;
	
	for (int i = 0; i < 7; ++i) cout << arr1[i];
	cout << endl;
	
	for (int i = 0; i < 10; ++i) cout << arr1[i];
	cout << endl;

	return 0;
}
/*
No play
No play
N
0x7ffdd6f5bdf0
No play
No play�
0x7ffdd6f5bdd0
0x7ffdd6f5bdd0
1
0x7ffdd6f5bdd0
1234567
1234567018811738387954796
*/