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咋错了?错哭了!#include<iostream>
#include<math.h>
#include<algorithm>
using namespace std;
long a[1001];
int main()
{
int n;
while(cin>>n&&n)
{
for(int i=0;i<n;++i)
cin>>a[i];
sort(a,a+n);
bool t=0;
for(int i=n-1;i>=3;--i)
{
for(int j=i-1;j>=2;--j)
{
if((a[i]-a[j])<a[0])continue;
for(int k=0;k<=j-2;++k)
{
if(!binary_search(a+k+1,a+j,(a[i]-a[j]-a[k])))continue;
cout<<a[i]<<endl;t=1;
}
if(t)break;
}
if(t)break;
}
if(!t)cout<<"no solution"<<endl;
}
return 0;
}
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