#include <vector>
#include <iostream>
using namespace std;
int pow10(int n)
{
int result = 10;
if (n==0)
{
return 1;
}
for (int i = 0;i < n;i++)
{
result *= 10;
}
return result;
}
void radixSort(int *L, int length, int k)
{
int *L1 = new int[length];
for (int i = 0;i < length;i++)
{
L1[i] = L[i];
}
vector<vector<int>> vec;
for (int i = 0;i < 10;i++)
{
vec.push_back(vector<int>());
}
for (int i = 0;i < k;i++)
{
for (int j = 0;j < 10;j++)
{
vec[j].clear();
}
for (int j = 0;j < length;j++)
{
int p = pow10(i);
vec[L1[j]%(p*10)/p].push_back(L1[j]);
}
int j = 0;
for (int k = 0;k < 10; k++)
{
vector<int>::iterator iter = vec[k].begin();
while (iter!= vec[k].end())
{
L1[j++] = *iter;
iter++;
}
}
}
for (int i = 0;i < length;i++)
{
L[i] = L1[i];
}
}
int main()
{
int arr[21] = {1,2,3,4,5,7,6,8,9,123,456,789,963,852,741,654,321,987,258,369,147};
radixSort(arr,21,3);
for (int i = 0;i < 21;i++)
{
cout <<arr[i] <<endl;
}
system("pause");
return 0;
}
</pre><pre name="code" class="cpp"><span style="font-size:18px;">欢迎批评指正O(∩_∩)O~</span>