Submission #668507

#	Time	Username	Problem	Language	Result	Execution time	Memory
668507		RambaXGorilla	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++17	0 / 100	7075 ms	5852 KiB

encoder

using namespace std;

int conv(int a){
    for(int i = 0, j = 0;i < 1 << 12;i++){
        if(__builtin_popcount(i) == 6){
            j++;
            if(j == a) return i;
        }
    }
}

int encode(int N, int X, int Y){
    X = conv(X);
    Y = conv(Y);
    return __builtin_ctz(X ^ (X & Y)) + 1;
}

int decode(int N, int Q, int H){
    return (bool) (conv(Q) & 1 << H - 1);
}

decoder

using namespace std;

int conv(int a){
    for(int i = 0, j = 0;i < 1 << 12;i++){
        if(__builtin_popcount(i) == 6){
            j++;
            if(j == a) return i;
        }
    }
}

int encode(int N, int X, int Y){
    X = conv(X);
    Y = conv(Y);
    return __builtin_ctz(X ^ (X & Y)) + 1;
}

int decode(int N, int Q, int H){
    return (bool) (conv(Q) & 1 << H - 1);
}

Compilation message (stderr)

encoder.cpp: In function 'int decode(int, int, int)':
encoder.cpp:19:37: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   19 |     return (bool) (conv(Q) & 1 << H - 1);
      |                                   ~~^~~
encoder.cpp: In function 'int conv(int)':
encoder.cpp:10:1: warning: control reaches end of non-void function [-Wreturn-type]
   10 | }
      | ^

decoder.cpp: In function 'int decode(int, int, int)':
decoder.cpp:19:37: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   19 |     return (bool) (conv(Q) & 1 << H - 1);
      |                                   ~~^~~
decoder.cpp: In function 'int conv(int)':
decoder.cpp:10:1: warning: control reaches end of non-void function [-Wreturn-type]
   10 | }
      | ^

• Subtask 1: 0 / 100