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Merge pull request #50 from shoaibrayeen/patch-1

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Converting BS in Standard Form
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huihut 2019-09-07 21:12:33 +08:00 committed by GitHub
commit 69d735735d
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1 changed files with 12 additions and 12 deletions
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24
Algorithm/BinarySearch.h
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@ -1,22 +1,22 @@
// 二分查找（折半查找）：对于已排序，若无序，需要先排序
// 非递归
int BinarySearch(vector<int> v, int value)
{
if (v.size() <= 0)
return -1;
int low = 0;
int high = v.size() - 1;
while (low <= high)
{
int BinarySearch(vector<int> v, int value , int low, int high) {
if (v.size() <= 0) {
return -1;
}
while (low <= high) {
int mid = low + (high - low) / 2;
if (v[mid] == value)
if (v[mid] == value) {
return mid;
else if (v[mid] > value)
}
else if (v[mid] > value) {
high = mid - 1;
else
}
else {
low = mid + 1;
}
}
return -1;
@ -34,4 +34,4 @@ int BinarySearch2(vector<int> v, int value, int low, int high)
return BinarySearch2(v, value, low, mid - 1);
else
return BinarySearch2(v, value, mid + 1, high);
}
}