emo了 求大佬看看错哪里了orz

#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    long long int m,n,tmp;
    cin>>n>>m;
    long long int maxsum=0 ,minsum=1000000000 ;
    for (int i=1;i<=n;i++)
    {
        cin>>tmp;
        if(tmp>maxsum)maxsum=tmp;
        if(tmp<minsum)minsum=tmp;
    }
   
    for(int i=1;i<=m;i++)
    {
        if(maxsum>2)maxsum=2*maxsum;
        else maxsum+=2;
    }
    int endi=maxsum-minsum;
    cout<<endi<<endl;
    return 0;
    
}