提交记录 21519 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
liswt	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C++17	221 B

提交时间	评测时间
2024-04-12 11:17:23	2024-04-12 11:17:24

代码

int binary_search(const unsigned *a, int n, unsigned x)
{
	unsigned l=0,r=n-1,mid;
	while(l<=r)
	{
		mid=(l+r)>>1;
		if(a[mid]==x)
		{
			return i;
		}
		if(a[i]<mid)
		{
			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/2e59d1b0f87b11ee953b9d510784bac5/contestant.cpp: In function ‘int binary_search(const unsigned int*, int, unsigned int)’:
jp_data/tasks/2e59d1b0f87b11ee953b9d510784bac5/contestant.cpp:9:11: error: ‘i’ was not declared in this scope
    9 |    return i;
      |           ^
jp_data/tasks/2e59d1b0f87b11ee953b9d510784bac5/contestant.cpp:11:8: error: ‘i’ was not declared in this scope
   11 |   if(a[i]<mid)
      |        ^