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class Stack {
public:
	Stack() = default;
	Stack(const Stack& other) :size(other.size) {
		this->data = new int[other.size];
		for (size_t i = 0; i < other.size; i++) {
			this->data[i] = other.data[i];
		}
	}
 
	Stack& operator=(const Stack& x) {
		if (&x != this) {
			delete[] data;
 
			this->data = new int[x.size];
			for (size_t i = 0; i < x.size; i++) {
				this->data[i] = x.data[i];
			}
			size = x.size;
		}
		return *this;
	}
 
	Stack(Stack&& other) noexcept : size(other.size), data(other.data) {
		other.data = nullptr;
		other.size = 0;
	}
 
	Stack& operator=(Stack&& x) noexcept {
		if (&x != this) {
			delete[] data;
			size = x.size;
			data = x.data;
 
			x.data = nullptr;
			x.size = 0;
 
		}
		return *this;
	}
	void setSize(size_t size) {
		this->size = size;
	}
	void push(int element) {
		int* copy_arr = new int[size + 1];
		for (size_t i = 0; i < size; i++) {
			copy_arr[i + 1] = data[i];
		}
		copy_arr[0] = element;
		size++;
		delete[] data;
		data = copy_arr;
	}
	void pop() {
		int* copy_arr = new int[size - 1];
		for (size_t i = 0; i < size - 1; i++) {
			copy_arr[i] = data[i + 1];
		}
		size--;
		delete[] data;
		data = copy_arr;
	}
	void swap(Stack& other) {
		if (this == &other)
			return;
		size_t tmpSz = other.size;
		other.size = size;
		size = tmpSz;
		int* tmpData = other.data;
		other.data = data;
		data = tmpData;
	}
	int top() {
		return data[size-1];
	}
	bool isEmpty() {
		return size == 0;
	}
	int get(size_t index) {
		return data[index];
	}
	int getSize() {
		return size;
	}
 
 
	~Stack() {
 
	}
 
private:
	size_t size;
	int* data = new int[size];
};
 
void print(Stack& stack) {
	for (size_t i = 0; i < stack.getSize(); i++) {
		std::cout.width(7);
		std::cout << stack.get(i);
	}
	std::cout << std::endl;
}
 
int main(){
	Stack stack;
	stack.push(1);
	stack.push(2);
	stack.push(3);
 
	print(stack);
	stack.pop();
	stack.pop();
	print(stack);
	std::cout.width(7);
	std::cout << stack.top();
}

prog.cpp:41:15: error: ‘size_t’ has not been declared
  void setSize(size_t size) {
               ^~~~~~
prog.cpp:79:10: error: ‘size_t’ has not been declared
  int get(size_t index) {
          ^~~~~~
prog.cpp:92:2: error: ‘size_t’ does not name a type
  size_t size;
  ^~~~~~
prog.cpp:92:2: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:1:1:
+#include <cstddef>
 class Stack {
prog.cpp:92:2:
  size_t size;
  ^~~~~~
prog.cpp:93:22: error: ‘size’ was not declared in this scope
  int* data = new int[size];
                      ^~~~
prog.cpp:93:22: note: suggested alternative: ‘setSize’
  int* data = new int[size];
                      ^~~~
                      setSize
prog.cpp: In copy constructor ‘Stack::Stack(const Stack&)’:
prog.cpp:4:29: error: class ‘Stack’ does not have any field named ‘size’
  Stack(const Stack& other) :size(other.size) {
                             ^~~~
prog.cpp:4:40: error: ‘const class Stack’ has no member named ‘size’; did you mean ‘setSize’?
  Stack(const Stack& other) :size(other.size) {
                                        ^~~~
                                        setSize
prog.cpp:5:30: error: ‘const class Stack’ has no member named ‘size’; did you mean ‘setSize’?
   this->data = new int[other.size];
                              ^~~~
                              setSize
prog.cpp:6:8: error: ‘size_t’ was not declared in this scope
   for (size_t i = 0; i < other.size; i++) {
        ^~~~~~
prog.cpp:6:8: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:6:22: error: ‘i’ was not declared in this scope
   for (size_t i = 0; i < other.size; i++) {
                      ^
prog.cpp:6:32: error: ‘const class Stack’ has no member named ‘size’; did you mean ‘setSize’?
   for (size_t i = 0; i < other.size; i++) {
                                ^~~~
                                setSize
prog.cpp: In member function ‘Stack& Stack::operator=(const Stack&)’:
prog.cpp:15:27: error: ‘const class Stack’ has no member named ‘size’; did you mean ‘setSize’?
    this->data = new int[x.size];
                           ^~~~
                           setSize
prog.cpp:16:9: error: ‘size_t’ was not declared in this scope
    for (size_t i = 0; i < x.size; i++) {
         ^~~~~~
prog.cpp:16:9: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:16:23: error: ‘i’ was not declared in this scope
    for (size_t i = 0; i < x.size; i++) {
                       ^
prog.cpp:16:29: error: ‘const class Stack’ has no member named ‘size’; did you mean ‘setSize’?
    for (size_t i = 0; i < x.size; i++) {
                             ^~~~
                             setSize
prog.cpp:19:4: error: ‘size’ was not declared in this scope
    size = x.size;
    ^~~~
prog.cpp:19:4: note: suggested alternative: ‘setSize’
    size = x.size;
    ^~~~
    setSize
prog.cpp:19:13: error: ‘const class Stack’ has no member named ‘size’; did you mean ‘setSize’?
    size = x.size;
             ^~~~
             setSize
prog.cpp: In constructor ‘Stack::Stack(Stack&&)’:
prog.cpp:24:34: error: class ‘Stack’ does not have any field named ‘size’
  Stack(Stack&& other) noexcept : size(other.size), data(other.data) {
                                  ^~~~
prog.cpp:24:45: error: ‘class Stack’ has no member named ‘size’; did you mean ‘setSize’?
  Stack(Stack&& other) noexcept : size(other.size), data(other.data) {
                                             ^~~~
                                             setSize
prog.cpp:26:9: error: ‘class Stack’ has no member named ‘size’; did you mean ‘setSize’?
   other.size = 0;
         ^~~~
         setSize
prog.cpp: In member function ‘Stack& Stack::operator=(Stack&&)’:
prog.cpp:32:4: error: ‘size’ was not declared in this scope
    size = x.size;
    ^~~~
prog.cpp:32:4: note: suggested alternative: ‘setSize’
    size = x.size;
    ^~~~
    setSize
prog.cpp:32:13: error: ‘class Stack’ has no member named ‘size’; did you mean ‘setSize’?
    size = x.size;
             ^~~~
             setSize
prog.cpp:36:6: error: ‘class Stack’ has no member named ‘size’; did you mean ‘setSize’?
    x.size = 0;
      ^~~~
      setSize
prog.cpp: In member function ‘void Stack::setSize(int)’:
prog.cpp:42:9: error: ‘class Stack’ has no member named ‘size’; did you mean ‘setSize’?
   this->size = size;
         ^~~~
         setSize
prog.cpp: In member function ‘void Stack::push(int)’:
prog.cpp:45:27: error: ‘size’ was not declared in this scope
   int* copy_arr = new int[size + 1];
                           ^~~~
prog.cpp:45:27: note: suggested alternative: ‘setSize’
   int* copy_arr = new int[size + 1];
                           ^~~~
                           setSize
prog.cpp:46:8: error: ‘size_t’ was not declared in this scope
   for (size_t i = 0; i < size; i++) {
        ^~~~~~
prog.cpp:46:8: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:46:22: error: ‘i’ was not declared in this scope
   for (size_t i = 0; i < size; i++) {
                      ^
prog.cpp: In member function ‘void Stack::pop()’:
prog.cpp:55:27: error: ‘size’ was not declared in this scope
   int* copy_arr = new int[size - 1];
                           ^~~~
prog.cpp:55:27: note: suggested alternative: ‘setSize’
   int* copy_arr = new int[size - 1];
                           ^~~~
                           setSize
prog.cpp:56:8: error: ‘size_t’ was not declared in this scope
   for (size_t i = 0; i < size - 1; i++) {
        ^~~~~~
prog.cpp:56:8: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:56:22: error: ‘i’ was not declared in this scope
   for (size_t i = 0; i < size - 1; i++) {
                      ^
prog.cpp: In member function ‘void Stack::swap(Stack&)’:
prog.cpp:66:3: error: ‘size_t’ was not declared in this scope
   size_t tmpSz = other.size;
   ^~~~~~
prog.cpp:66:3: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:67:9: error: ‘class Stack’ has no member named ‘size’; did you mean ‘setSize’?
   other.size = size;
         ^~~~
         setSize
prog.cpp:67:16: error: ‘size’ was not declared in this scope
   other.size = size;
                ^~~~
prog.cpp:67:16: note: suggested alternative: ‘setSize’
   other.size = size;
                ^~~~
                setSize
prog.cpp:68:10: error: ‘tmpSz’ was not declared in this scope
   size = tmpSz;
          ^~~~~
prog.cpp: In member function ‘int Stack::top()’:
prog.cpp:74:15: error: ‘size’ was not declared in this scope
   return data[size-1];
               ^~~~
prog.cpp:74:15: note: suggested alternative: ‘setSize’
   return data[size-1];
               ^~~~
               setSize
prog.cpp: In member function ‘bool Stack::isEmpty()’:
prog.cpp:77:10: error: ‘size’ was not declared in this scope
   return size == 0;
          ^~~~
prog.cpp:77:10: note: suggested alternative: ‘setSize’
   return size == 0;
          ^~~~
          setSize
prog.cpp: In member function ‘int Stack::getSize()’:
prog.cpp:83:10: error: ‘size’ was not declared in this scope
   return size;
          ^~~~
prog.cpp:83:10: note: suggested alternative: ‘setSize’
   return size;
          ^~~~
          setSize
prog.cpp: In function ‘void print(Stack&)’:
prog.cpp:97:7: error: ‘size_t’ was not declared in this scope
  for (size_t i = 0; i < stack.getSize(); i++) {
       ^~~~~~
prog.cpp:97:7: note: ‘size_t’ is defined in header ‘<cstddef>’; did you forget to ‘#include <cstddef>’?
prog.cpp:97:21: error: ‘i’ was not declared in this scope
  for (size_t i = 0; i < stack.getSize(); i++) {
                     ^
prog.cpp:98:8: error: ‘cout’ is not a member of ‘std’
   std::cout.width(7);
        ^~~~
prog.cpp:98:8: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
prog.cpp:1:1:
+#include <iostream>
 class Stack {
prog.cpp:98:8:
   std::cout.width(7);
        ^~~~
prog.cpp:99:8: error: ‘cout’ is not a member of ‘std’
   std::cout << stack.get(i);
        ^~~~
prog.cpp:99:8: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
prog.cpp:101:7: error: ‘cout’ is not a member of ‘std’
  std::cout << std::endl;
       ^~~~
prog.cpp:101:7: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
prog.cpp:101:20: error: ‘endl’ is not a member of ‘std’
  std::cout << std::endl;
                    ^~~~
prog.cpp:101:20: note: ‘std::endl’ is defined in header ‘<ostream>’; did you forget to ‘#include <ostream>’?
prog.cpp:1:1:
+#include <ostream>
 class Stack {
prog.cpp:101:20:
  std::cout << std::endl;
                    ^~~~
prog.cpp: In function ‘int main()’:
prog.cpp:114:7: error: ‘cout’ is not a member of ‘std’
  std::cout.width(7);
       ^~~~
prog.cpp:114:7: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?
prog.cpp:115:7: error: ‘cout’ is not a member of ‘std’
  std::cout << stack.top();
       ^~~~
prog.cpp:115:7: note: ‘std::cout’ is defined in header ‘<iostream>’; did you forget to ‘#include <iostream>’?

Standard output is empty