1.2.6
Correcting Algorithms
Correcting Algorithms
Correcting Algorithms
As well as knowing what an algorithm does, it's important to be able to fix it if it all goes wrong.
Incorrect identifiers
Incorrect identifiers
- A common mistake in programs is incorrect identifiers.
- Be very careful with uppercase and lowercase letters.
- Be careful with similar looking characters:
- 0 and O.
- 1 and l (lower case L).
Incorrect operators
Incorrect operators
- Look out for the difference between similar operators such as testing if a number is less than another, rather than less than or equal to the other.
Missing processes
Missing processes
- Sometimes a line of code has been forgotten, which can lead to issues such as infinite loops, where the code will never end.
1Computational Thinking & Algorithms
1.1Computational Thinking
1.2Algorithms
1.2.1Algorithms
1.2.2Pseudocode
1.2.3Flow Diagrams
1.2.4Logical Reasoning & Debugging
1.2.5Reading Algorithms
1.2.6Correcting Algorithms
1.2.7Complete the Algorithm
1.2.8Search Algorithms
1.2.9Linear Search
1.2.10Binary Search
1.2.11Sort Algorithms
1.2.12Bubble Sort
1.2.13Insertion Sort
1.2.14End of Topic Test - Algorithms
2Programming
2.1Programming Fundamentals
2.1.1Variables & Constants
2.1.2Comments
2.1.3Input & Output
2.1.4Arithmetic Operators
2.1.5Relational Operators
2.1.6Boolean Operators
2.1.7Sequence
2.1.8Selection
2.1.9Iteration
2.1.10Subroutines
2.1.11Scope
2.1.12Data Types
2.1.13Casting
2.1.14Arrays
2.1.152D Arrays
2.1.16Lists
2.1.172D Lists
2.1.18Strings
2.1.19Syntax Errors
2.1.20Logic Errors
2.1.21Runtime Errors
2.1.22End of Topic Test - Programming
2.2Designing Code
3Hardware & Software
3.1Hardware
3.2Software
4Data
5The Internet
6Online Safety & Security
6.1Protecting Yourself Online
Jump to other topics
1Computational Thinking & Algorithms
1.1Computational Thinking
1.2Algorithms
1.2.1Algorithms
1.2.2Pseudocode
1.2.3Flow Diagrams
1.2.4Logical Reasoning & Debugging
1.2.5Reading Algorithms
1.2.6Correcting Algorithms
1.2.7Complete the Algorithm
1.2.8Search Algorithms
1.2.9Linear Search
1.2.10Binary Search
1.2.11Sort Algorithms
1.2.12Bubble Sort
1.2.13Insertion Sort
1.2.14End of Topic Test - Algorithms
2Programming
2.1Programming Fundamentals
2.1.1Variables & Constants
2.1.2Comments
2.1.3Input & Output
2.1.4Arithmetic Operators
2.1.5Relational Operators
2.1.6Boolean Operators
2.1.7Sequence
2.1.8Selection
2.1.9Iteration
2.1.10Subroutines
2.1.11Scope
2.1.12Data Types
2.1.13Casting
2.1.14Arrays
2.1.152D Arrays
2.1.16Lists
2.1.172D Lists
2.1.18Strings
2.1.19Syntax Errors
2.1.20Logic Errors
2.1.21Runtime Errors
2.1.22End of Topic Test - Programming
2.2Designing Code
3Hardware & Software
3.1Hardware
3.2Software
4Data
5The Internet
6Online Safety & Security
6.1Protecting Yourself Online
Unlock your full potential with GoStudent tutoring
Affordable 1:1 tutoring from the comfort of your home
Tutors are matched to your specific learning needs
30+ school subjects covered