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#include <iostream>
#include <math.h>
 
const int HEART_SIZE = 20;
const int HALF_SIZE = HEART_SIZE / 2;
 
bool is_in_love(int x,int, y);
 
int main(void)
{
	std::string message = " SYSTEMATIC LOVE ";
	int message_indent = (HALF_SIZE - (message.length() / 4 )) - 1;
 
	for(int y = 0; y < HEART_SIZE; ++y)
	{
		for(int x = 0; x < HEART_SIZE; ++x)
		{
			std::cout << ((is_in_love(x,y)) ? "vv" : " ");
 
			if(Y == HALF_SIZE - 1)
			{
				if(x == message_indent)
				{
					std::cout << message.c_str():
					x += (message.length() / 2);
				}
			}
 
		}
 
		std::cout << "/n" ;
	}
 
	return 0;
}
 
bool is_in_love(int x,int y)
{
	const float width = 2.2f;
	const float height = 30.f;
	const float HEART_COEFFICIENT = 0.7f
 
	float check_x = ((static_cast<float>(x) / static_cast<float>(HEART_SIZE)) - 0.5f) * width;
    float check_y = ((static_cast<float>(HEART_SIZE - y) / static_cast<float>(HEART_SIZE)) - 0.4f) * height;
 
    float top_y = 0.0f;
    float bottom_y = 0.0f;
 
    if (check_x >= 0)
    {
        top_y = sqrt(1 - (check_x * check_x)) + (HEART_COEFFICIENT * sqrt(check_x));
        bottom_y = -sqrt(1 - (check_x * check_x)) + (HEART_COEFFICIENT * sqrt(check_x));
    }
    else
    {
        top_y = sqrt(1 - (check_x * check_x)) + (HEART_COEFFICIENT * sqrt(-check_x));
        bottom_y = -sqrt(1 - (check_x * check_x)) + (HEART_COEFFICIENT * sqrt(-check_x));
    }
 
    if ((bottom_y <= check_y) && (check_y <= top_y))
    {
        return true;
    }
    else
    {
        return false;
    }
}

prog.cpp:7:28: error: 'y' has not been declared
 bool is_in_love(int x,int, y);
                            ^
prog.cpp: In function 'int main()':
prog.cpp:18:33: error: too few arguments to function 'bool is_in_love(int, int, int)'
    std::cout << ((is_in_love(x,y)) ? "vv" : " ");
                                 ^
prog.cpp:7:6: note: declared here
 bool is_in_love(int x,int, y);
      ^
prog.cpp:20:7: error: 'Y' was not declared in this scope
    if(Y == HALF_SIZE - 1)
       ^
prog.cpp:24:34: error: expected ';' before ':' token
      std::cout << message.c_str():
                                  ^
prog.cpp: In function 'bool is_in_love(int, int)':
prog.cpp:43:2: error: expected ',' or ';' before 'float'
  float check_x = ((static_cast<float>(x) / static_cast<float>(HEART_SIZE)) - 0.5f) * width;
  ^
prog.cpp:49:9: error: 'check_x' was not declared in this scope
     if (check_x >= 0)
         ^

Standard output is empty