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Create 01-复杂度3 二分查找 (20 分).c

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hao14293
2019-05-01 13:34:19 +08:00
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parent 8883d67e71
commit 44382c78ce
1 changed files with 21 additions and 0 deletions
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21
ZJU_MOOC_数据结构/01-复杂度3 二分查找 (20 分).c Normal file
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Position BinarySearch( List L, ElementType X ){
int p = 0;
int s = 1;
int e = L->Last;
int num = e/2;
while(num--){
int mid = (s + e) / 2;
if(L->Data[mid] == X){
p = mid;
break;
}else if(L->Data[mid] > X){
e = mid - 1;
}else if(L->Data[mid] < X){
s = mid + 1;
}
}
if(p == 0)
return NotFound;
return p;
}