davidMSK

if(list.get(maxSumStartIndex) + list.get(maxSumLastIndex) == maxSum && maxSumStartIndex > 0 && list.get(maxSumStartIndex) != list.get(maxSumLastIndex)){
                maxSumStartIndex = list.indexOf(maxSum - list.get(maxSumStartIndex));
                maxSumLastIndex = list.indexOf(maxSum -  list.get(maxSumLastIndex));
            }

if (maxSum == lastSum) {
                if (maxSumLastIndex - maxSumStartIndex < i - lastSumStartIndex) continue;
                maxSumStartIndex = lastSumStartIndex;//крч надо чтобы тут 11
                maxSumLastIndex = i;// а тут 12
                maxSumLength = maxSumLastIndex - maxSumStartIndex + 1;
            }