Unreal engine is exiting due to d3d device being lost

//variable integer_list to hold a list of integers

DECLARE integer_list

ASSIGN values to integer_list

//variable sum to hold the sum of the elements in the list

DECLARE sum

ASSIGN zero to sum

//loop through the integer_list and sum all it's elements together.

for(int i=0; i<integer_list.size(); i++){

sum += interger_list.get(i)

}

//Show the result of the addition from the for loop

DISPLAY "The sum is " + sum

Explanation:

The above code uses some hypothetical programming language syntax. The second and third lines declare an arbitrary integer list and assign a set of values to it respectively.  

The fifth line declares a variable "sum" which will hold the result of summing all the elements in the list. The sixth line initializes "sum" to zero.

The for loop shown iterates through the integer list cumulatively summing its elements.

The result is displayed as written on line 12.

Hope it helps!