Counting how many times a loop loops.

This is my code I want the user to enter a number they beleive the loop will run for until the running sum of integers is 21.

% Input Varibles
  g = input('guess how many times');

% Constant Varibles
  n = randi ([1, 11]);
  max_21 = 21;

% Calculate Running Sum.

    for a=n

        sum = sum + a;
        if sum>21
           disp (sum)
        else sum = sum + a;

        end 

    end

What I want it to do is loop throgh the random integers and create a running sum. When the sum exceeds 21 I want it to stop. I need to calculate how many times it loops. Then I want to compare the ammount of loops to the inputed guess. Thinking about it now I may need a while loop. Could someone help me out im stuck.

Thanks,

Answer 1

[Chandrasekhar]

Check the code below.

% Input Varibles
  g = input('guess how many times');

% Calculate Running Sum.
loopcnt = 0;
sum = 0;

    while(sum <=21)
        n = randi ([1, 11]);
        sum = sum + n;
        loopcnt = loopcnt + 1;
    end
        disp (sum);
        disp(['number of loops: ' num2str(loopcnt)]);

[Giuseppe]

Thanks