隔壁的王大哥 2018-04-29 23:26:57
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#include<iostream>
#include<stdio.h>
using namespace std;
int main()
{
int *arr;
int n;
cin >> n;
int count = n;
arr = new int[n];
for (int i = 0; i<n; ++i)
{
cin >> arr[i];
}
for (int ii = 0; ii<n-1; ++ii)
{
for (int j = 0; j<n-ii - 1; ++j)
{
if (arr[j]>arr[j + 1])
{
arr[j] += arr[j +1];
arr[j+1] = arr[j]-arr[j+1];
arr[j]= arr[j]-arr[j+1];
}
else if (arr[j] == arr[j + 1])
{
count--;
for (int loop = j; loop<n - 1; ++loop)
{
arr[loop] = arr[loop + 1];
}
}
}
}
cout<< count<<endl;
for (int i = 0; i<count; ++i)
{
cout<<" "<<arr[i];
}
return 0;
}