Flowchart is better.
The advantages of flow chart is given below.
1. Better communication:
A flow chart is a pictorial representation while an algorithm is a step by step procedure to solve a program. A programmer can easily explain the program logic using a flow chart.
2. Effective analysis:
The program can be analyzed effectively through the flow chart.
3. Effective synthesis:
If a problem is big it can be divided into small modules and the solution for each module is represented in flowchart separately and can be joined together final system design.
4. Proper program documentation:
A flow chart will help to create a document that will help the company in the absence of a programmer.
5. Efficient coding:
With the help of a flowchart it is easy to write program by using a computer language.