提交记录 7799 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
JacaJava	1003. 测测你的二分查找	Compile Error	0	0 ns	0 KB	C++	165 B

提交时间	评测时间
2019-01-25 10:19:17	2020-08-01 01:08:35

代码

int binary_search(const unsigned *a, int n, unsigned x)
{
	register l,r,m;
	l=0; r=min(a,x);
	for(;l<r;){
		m=l+r>>1;
		if(a[m]<x) l=m+1;
		else r=m;
	}
return l;
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/76d22496d35011ea899e00163e04388b/contestant.cpp: In function ‘int binary_search(const unsigned int*, int, unsigned int)’:
jp_data/tasks/76d22496d35011ea899e00163e04388b/contestant.cpp:3:11: error: ‘l’ does not name a type
    3 |  register l,r,m;
      |           ^
jp_data/tasks/76d22496d35011ea899e00163e04388b/contestant.cpp:4:2: error: ‘l’ was not declared in this scope
    4 |  l=0; r=min(a,x);
      |  ^
jp_data/tasks/76d22496d35011ea899e00163e04388b/contestant.cpp:4:7: error: ‘r’ was not declared in this scope
    4 |  l=0; r=min(a,x);
      |       ^
jp_data/tasks/76d22496d35011ea899e00163e04388b/contestant.cpp:4:9: error: ‘min’ was not declared in this scope
    4 |  l=0; r=min(a,x);
      |         ^~~
jp_data/tasks/76d22496d35011ea899e00163e04388b/contestant.cpp:6:3: error: ‘m’ was not declared in this scope
    6 |   m=l+r>>1;
      |   ^