提交记录 5422 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
yyfcpp	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C++	198 B

提交时间	评测时间
2018-08-22 13:09:39	2020-08-01 00:16:55

代码

int binary_search(const unsigned *a, int n, unsigned x)
{
//	for(int i = 0; i < n; i++)
//		if(a[i] == x)
//			return i;
//	return 233;
    return std::distance(a, std::lower_bound(a, a + n, x));
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/3f1f36efd34911ea899e00163e04388b/contestant.cpp: In function ‘int binary_search(const unsigned int*, int, unsigned int)’:
jp_data/tasks/3f1f36efd34911ea899e00163e04388b/contestant.cpp:7:17: error: ‘distance’ is not a member of ‘std’
    7 |     return std::distance(a, std::lower_bound(a, a + n, x));
      |                 ^~~~~~~~
jp_data/tasks/3f1f36efd34911ea899e00163e04388b/contestant.cpp:1:1: note: ‘std::distance’ is defined in header ‘<iterator>’; did you forget to ‘#include <iterator>’?
  +++ |+#include <iterator>
    1 | int binary_search(const unsigned *a, int n, unsigned x)
jp_data/tasks/3f1f36efd34911ea899e00163e04388b/contestant.cpp:7:34: error: ‘lower_bound’ is not a member of ‘std’
    7 |     return std::distance(a, std::lower_bound(a, a + n, x));
      |                                  ^~~~~~~~~~~