fork download

copy

    #include <iostream>
    using namespace std;
    int a, b, c, d;
 
    int main() {
    	cin (a);
    	cin (b);
    	cin (c);
    	d==b^2-4*a*c;
    	cout("delta = ",d);
    	return 0;
    }

prog.cpp: In function 'int main()':
prog.cpp:6:12: error: no match for call to '(std::istream {aka std::basic_istream<char>}) (int&)'
      cin (a);
            ^
prog.cpp:7:12: error: no match for call to '(std::istream {aka std::basic_istream<char>}) (int&)'
      cin (b);
            ^
prog.cpp:8:12: error: no match for call to '(std::istream {aka std::basic_istream<char>}) (int&)'
      cin (c);
            ^
prog.cpp:10:23: error: no match for call to '(std::ostream {aka std::basic_ostream<char>}) (const char [9], int&)'
      cout("delta = ",d);
                       ^

Standard output is empty