Giới thiệu
include <bits/stdc++.h>
using namespace std;
long long n,a[10000000],m,ans=0;
int main()
{
cin>>m>>n;
for (int i=1;i<=n;i++)
{
cin>>a[i];
ans+=a[i];
}
if (ans%m==0) cout<<ans/m;
else cout<<(ans/m)+1;
return 0;
}
using namespace std;
long long n,a[10000000],m,ans=0;
int main()
{
cin>>m>>n;
for (int i=1;i<=n;i++)
{
cin>>a[i];
ans+=a[i];
}
if (ans%m==0) cout<<ans/m;
else cout<<(ans/m)+1;
return 0;
}