提交记录 13018 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
top_secret	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C++	334 B

提交时间	评测时间
2020-07-19 11:09:06	2020-08-01 03:02:54

代码

int binary_search(const unsigned *a, int n, unsigned X)
{
register unsigned *L = a, *R = a + (100000000 - 1);
register unsigned long long x = X;
	while(L<R){
register int md = ((R - a) * (x - *L) + (L - a) * (*R - x)) / (*R - *L);
if(a[md] == x) return md; else if(a[md] < x) L = a + (md + 1); else R = a + (md - 1);
}
return L - a;
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/6a71b5d0d36011ea899e00163e04388b/contestant.cpp: In function ‘int binary_search(const unsigned int*, int, unsigned int)’:
jp_data/tasks/6a71b5d0d36011ea899e00163e04388b/contestant.cpp:3:24: error: invalid conversion from ‘const unsigned int*’ to ‘unsigned int*’ [-fpermissive]
    3 | register unsigned *L = a, *R = a + (100000000 - 1);
      |                        ^
      |                        |
      |                        const unsigned int*
jp_data/tasks/6a71b5d0d36011ea899e00163e04388b/contestant.cpp:3:34: error: invalid conversion from ‘const unsigned int*’ to ‘unsigned int*’ [-fpermissive]
    3 | register unsigned *L = a, *R = a + (100000000 - 1);
      |                                ~~^~~~~~~~~~~~~~~~~
      |                                  |
      |                                  const unsigned int*
jp_data/tasks/6a71b5d0d36011ea899e00163e04388b/contestant.cpp:7:52: error: invalid conversion from ‘const unsigned int*’ to ‘unsigned int*’ [-fpermissive]
    7 | if(a[md] == x) return md; else if(a[md] < x) L = a + (md + 1); else R = a + (md - 1);
      |                                                  ~~^~~~~~~~~~
      |                                                    |
      |                                                    const unsigned int*
jp_data/tasks/6a71b5d0d36011ea899e00163e04388b/contestant.cpp:7:75: error: invalid conversion from ‘const unsigned int*’ to ‘unsigned int*’ [-fpermissive]
    7 | if(a[md] == x) return md; else if(a[md] < x) L = a + (md + 1); else R = a + (md - 1);
      |                                                                         ~~^~~~~~~~~~
      |                                                                           |
      |                                                                           const unsigned int*