제출 #97030

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
97030		Kastanda	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++11	0 / 100	1128 ms	78880 KiB

encoder

// And I was like ooo-eee-ooo
#include<bits/stdc++.h>
using namespace std;
const int MXN = 4095;
vector < int > A;
inline int Init()
{
    for (int i = 0; i <= MXN; i++)
        if (__builtin_popcount(i) == 6)
            A.push_back(i);
}
int encode(int N, int X, int Y)
{
    if (!A.size()) Init();
    return (__builtin_ctz(A[X] & (MXN ^ A[Y])) + 1);
}

decoder

// White tiger's like ooo-aaa--oooo
#include<bits/stdc++.h>
using namespace std;
const int MXN = 4095;
vector < int > A;
inline int Init()
{
    for (int i = 0; i <= MXN; i++)
        if (__builtin_popcount(i) == 6)
            A.push_back(i);
}
int decode(int N, int Q, int H)
{
    if (!A.size()) Init();
    return (A[Q] & (1 << H - 1));
}

컴파일 시 표준 에러 (stderr) 메시지

encoder.cpp: In function 'int Init()':
encoder.cpp:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

decoder.cpp: In function 'int Init()':
decoder.cpp:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
decoder.cpp: In function 'int decode(int, int, int)':
decoder.cpp:15:28: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
     return (A[Q] & (1 << H - 1));
                          ~~^~~

• Subtask 1: 0 / 100