A-level Computing/AQA/Problem Solving, Programming, Data Representation and Practical Exercise/Problem Solving/Algorithm design

Finite state machines Trace tables Algorithm a set of instructions independent of any programming language that calculates a function or solves a problem. Express the solution to a simple problem as an algorithm using flowcharts, pseudo-code or structured English and the standard constructs: Sequence thumb|center performing or operating each step consecutively in the order they arise Console.writeline("This is line 1") Console.writeline("This is line 2") Console.writeline("This is line 3") include<stdio.h> int main() { // Read n int n; printf("Enter number n : "); scanf("%d", &n); // Declare sum to 0 // counter variable i to 1 int sum = 0; int i = 1; // loop to input n numbers // loop continues until i<=n for(i=1;i<=n;i++){ // read num int num ; printf("Enter number %d: ", i); scanf("%d", &num); // update sum to sum + num sum = sum + num; } // print sum printf("Sum of given numbers is %d", sum); return 0; } Selection Selection is choosing a step center|thumb If x > 0 then Console.writeline("x is positive") End If If x = 0 then Console.writeline("x equals 0") End If If x < 0 then Console.writeline("x is negative") End If Repetition A sequence of steps that loop until a requirement is met center|thumb center|thumb center|thumb x = 0 y = 5 Do x = x + 1 Loop Until x = y Finite state machines Trace tables