You can use a decision structure to build a complete program without much effort or practice. Here is a perfect example.
There are several decision structures in the book, but I’m going to focus on the one that is most useful to programers.
A decision structure is a table of options with a single rule determining the next move. Typically, the rules in a decision structure are like a “best guess” or “best case scenario.” For example, the rule for a decision structure might be “If the value of X is less than or equal to Y, then move to B and change the value of Y.
This sounds complicated, but it’s a good example of a decision structure. In this case, the rule for the decision structure is simple, since values are bounded by the values of their variables. The rule is that if the value of a variable in a decision structure is less than (or equal to) the value of an other variable, then move to that other variable and change its value.
Another important decision structure that’s often overlooked is the branch and bound. This is the classic way you might decide in a game. In a chess game, you have a starting position and a goal. If you can move the game from one position to another, then you’ve won.
The decision structure is a very powerful feature of computer programs. But there are some very basic rules that apply to it.
The decision structure is very similar to the way a program would look if it was written using a loop. The important difference is that a loop would end when the input is done. But a decision structure is more like a switch statement. So if we want to move the game to the next branch of a decision structure, we can just do so.
For our game, our decision structure is like the switch statement. We keep moving the loop, but the next branch of it is a switch statement with a new condition. The idea is that the loop will continue to loop until the condition is met, but if the condition is met, the loop will stop. This means that we can use an if statement to decide on a new condition or continue the loop.
In the case of our game, there isn’t much that we can do with the loop itself but the switch-like structure. We just have to decide when it’s time to move on to the next branch of the decision structure. The loop is the first branch of the decision structure and moves on to the next branch of the loop and so on. We can’t do anything with the loop itself, we just move on to the next branch of the decision structure.