提交记录 28598 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
xvl_	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C++17	105 B

提交时间	评测时间
2025-10-13 10:24:41	2025-10-13 10:24:43

代码

#include<algorithm>
int binary_search(const unsigned *a,int n,unsigned x){return lower_bound(a,a+n,x)-a;}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/c6401a00a7db11f092f5f5b9524cb88a/contestant.cpp: In function ‘int binary_search(const unsigned int*, int, unsigned int)’:
jp_data/tasks/c6401a00a7db11f092f5f5b9524cb88a/contestant.cpp:2:62: error: ‘lower_bound’ was not declared in this scope; did you mean ‘std::lower_bound’?
    2 | int binary_search(const unsigned *a,int n,unsigned x){return lower_bound(a,a+n,x)-a;}
      |                                                              ^~~~~~~~~~~
      |                                                              std::lower_bound
In file included from /usr/include/c++/9/algorithm:62,
                 from jp_data/tasks/c6401a00a7db11f092f5f5b9524cb88a/contestant.cpp:1:
/usr/include/c++/9/bits/stl_algo.h:2022:5: note: ‘std::lower_bound’ declared here
 2022 |     lower_bound(_ForwardIterator __first, _ForwardIterator __last,
      |     ^~~~~~~~~~~