How to calculate the sum of the values ​​of an array?

Answer 1

you can loop over all elements in the array and calculate the sum or you can simply call Sum() function on the array. for example
int[] mArray={1,2,3};
Console.WriteLine(mArray.Sum());
// output: 6

Answer 2

print(sum([i for i in range(1,100)]}}
will print the sum of a list from 1 to 100

Answer 3

int sum = 0; for (int i = 0; i < Array.Length(); i++) sum += Array[i] ;

int sum = 0; foreach(int i in Array) sum += i;

int sum = Array.Sum();