제출 #166667

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
166667		Lawliet	질문 (CEOI14_question_grader)	C++14	컴파일 에러	0 ms	0 KiB

encoder

bool isActive(int v, int k) { return v & (1 << k); }

int encode (int n, int x, int y)
{
  int cnt = 1;

  for(int m = 0 ; cnt <= n ; m++)
    if( __builtin_popcount( m ) == 6 ) mask[ cnt++ ] = m;

  x = mask[ x ];
  y = mask[ y ];

  for(int j = 0 ; j < 12 ; j++)
    if( isActive( x , j ) && !isActive( y , j ) ) return j + 1;
}

decoder

bool isActive(int v, int k) { return v & (1 << k); }

int decode (int n, int q, int h)
{
	h--;
	int cnt = 1;

  for(int m = 0 ; cnt <= n ; m++)
    if( __builtin_popcount( m ) == 6 ) mask[ cnt++ ] = m;

	if( isActive( mask[ q ] , h ) ) return 1;
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:8:40: error: 'mask' was not declared in this scope
     if( __builtin_popcount( m ) == 6 ) mask[ cnt++ ] = m;
                                        ^~~~
encoder.cpp:10:7: error: 'mask' was not declared in this scope
   x = mask[ x ];
       ^~~~
encoder.cpp:15:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

decoder.cpp: In function 'int decode(int, int, int)':
decoder.cpp:9:40: error: 'mask' was not declared in this scope
     if( __builtin_popcount( m ) == 6 ) mask[ cnt++ ] = m;
                                        ^~~~
decoder.cpp:11:16: error: 'mask' was not declared in this scope
  if( isActive( mask[ q ] , h ) ) return 1;
                ^~~~