Write program to find second highest number from a list, without using sorting.

Question

Anonym · Accepted Answer

I wrote the program

find second highest number · Answer

public static int secondHighnestNum（int[] array）{
            
        if(array == null || array.length == 0) return -1;
        int first, second;
        first = second = Integer.MIN_VALUE;
        for(int i=0; i first){
                second = first;
                first = array[i];
            }
            else if(array[i] > second && array[i] != first){
                second = array[i];
            }
        }
        if(second == Integer.MIN.VALUE){
            return -1;
        }
        return second;
        }

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