提交记录 20332 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
c20150005	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C++17	177 B

提交时间	评测时间
2023-10-13 20:50:46	2023-10-13 20:50:48

代码

int binary_search(const unsigned *a, int n, unsigned x)
{unsigned l=114514,r=n-1919810;
while(l<=r){
if(a[(l+r)>>1]==x){
return mid;
}if(a[(l+r)>>1]<x)l=mid+1;
else r=mid-1;
}
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/20ec5a2c69c711ee953b9d510784bac5/contestant.cpp: In function ‘int binary_search(const unsigned int*, int, unsigned int)’:
jp_data/tasks/20ec5a2c69c711ee953b9d510784bac5/contestant.cpp:5:8: error: ‘mid’ was not declared in this scope
    5 | return mid;
      |        ^~~
jp_data/tasks/20ec5a2c69c711ee953b9d510784bac5/contestant.cpp:6:21: error: ‘mid’ was not declared in this scope
    6 | }if(a[(l+r)>>1]<x)l=mid+1;
      |                     ^~~
jp_data/tasks/20ec5a2c69c711ee953b9d510784bac5/contestant.cpp:7:8: error: ‘mid’ was not declared in this scope
    7 | else r=mid-1;
      |        ^~~