I do not know what is wrong, I think it is right, but the submission is not accepted by a large set. I don't think it has anything to do the size. Please help me.

```
public class Solution {
public int maxProfit(int[] prices) {
if(prices.length<2)
return 0;
int sum2=0;
int i=1,H1=0,H2=0,E1=0,E2=0;
for(i=1;i<prices.length;i++){
if(prices[i]>prices[i-1]){
E2=i;
sum2+=prices[i]-prices[i-1];
if(prices[E2]-prices[H1]>prices[E1]-prices[H1]&&prices[E2]-prices[H1]>sum2){
E1=E2;
}
else if(prices[E1]-prices[H1]>sum2)
continue;
else{
H1=H2;
E1=E2;
}
}
else{
sum2=0;
H2=i;
}
}
return prices[E1]-prices[H1];
}
}
```