Language: C++

#include<iostream>
int main(void){
	int a,b,d,r;
	double x,y,f;
	cin>>a>>b;
	d=a/b;
	r=a%b;
	x=a;
	y=b;
	f=a/b;
	printf(???%d %d %.8lf?\n???,d,r,f);
	return 0;
}

Compiler output:
a.cc:11:31: error: stray '\' in program
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                               ^
a.cc: In function 'int main()':
a.cc:5:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |         cin>>a>>b;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:11:16: error: expected primary-expression before '?' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                ^
a.cc:11:17: error: expected primary-expression before '?' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                 ^
a.cc:11:18: error: expected primary-expression before '?' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                  ^
a.cc:11:19: error: expected primary-expression before '%' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                   ^
a.cc:11:26: error: unable to find numeric literal operator 'operator""lf'
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                          ^~~~
a.cc:11:32: error: 'n' was not declared in this scope
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                ^
a.cc:11:34: error: expected primary-expression before '?' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                  ^
a.cc:11:35: error: expected primary-expression before '?' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                   ^
a.cc:11:36: error: expected primary-expression before ',' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                    ^
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token
a.cc:11:42: error: expected ':' before ')' token
   11 |         printf(???%d %d %.8lf?\n???,d,r,f);
      |                                          ^
      |                                          :
a.cc:11:42: error: expected primary-expression before ')' token