public class Solution {
    public int FindGreatestSumOfSubArray(int[] array) {
        int thisSum=0, maxSum=array[0];
        for(int i=0;i<array.length;i++){
            thisSum+=array[i];
            if(thisSum>maxSum){
                maxSum=thisSum;
            }else if(thisSum<0){
                thisSum = 0;
            }
        }
        return maxSum;
    }
}