提交记录 738 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
frf	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C	302 B

提交时间	评测时间
2018-06-20 16:46:08	2020-07-31 20:42:17

代码

int binary_search(const unsigned *a,const int n, unsigned x)
{
	static const unsigned a = 0;
	static const unsigned b = 99999999;
	register unsigned l = a, r = b;
	for(;;) {
		register unsigned mid = l + r >> 1;
		if ( a[mid] == x ) return mid;
		if ( a[mid] > x ) r = mid - 1;
		else l = mid + 1
	}
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/428151dfd32b11ea899e00163e04388b/contestant.c: In function ‘binary_search’:
jp_data/tasks/428151dfd32b11ea899e00163e04388b/contestant.c:3:24: error: ‘a’ redeclared as different kind of symbol
    3 |  static const unsigned a = 0;
      |                        ^
jp_data/tasks/428151dfd32b11ea899e00163e04388b/contestant.c:1:35: note: previous definition of ‘a’ was here
    1 | int binary_search(const unsigned *a,const int n, unsigned x)
      |                   ~~~~~~~~~~~~~~~~^
jp_data/tasks/428151dfd32b11ea899e00163e04388b/contestant.c:8:9: error: subscripted value is neither array nor pointer nor vector
    8 |   if ( a[mid] == x ) return mid;
      |         ^
jp_data/tasks/428151dfd32b11ea899e00163e04388b/contestant.c:9:9: error: subscripted value is neither array nor pointer nor vector
    9 |   if ( a[mid] > x ) r = mid - 1;
      |         ^
jp_data/tasks/428151dfd32b11ea899e00163e04388b/contestant.c:10:19: error: expected ‘;’ before ‘}’ token
   10 |   else l = mid + 1
      |                   ^
      |                   ;
   11 |  }
      |  ~