Tutorial 3: How to write an Algorithm and its Basic

• There are no well-defined standards for writing algorithms.
• It is problem or resource dependent.
• All programming languages share basic code constructs like loops (do, for and while), flow controls (if-else), etc. These common constructs can be used to write an algorithm.
• Algorithm writing is a process and is executed after the problem domain is well-defined.

Problem:- Design an algorithm to add two numbers and display the result

step 1: START

step 2: declare three integers a, b & c

step 3: define values of a & b

step 4: add values of a & b

step 5: store step 4 to c

step 6: print c

step 7: STOP

Other Way:-

step 1: START ADD

step 2: get values of a & b

step 3: c < — a & b

step 4: display c

step 5: STOP

Algorithm Complexity:-

              Two main factor which decide the efficiency of X

Time Factor:- Time is measured by counting the number of key operation such as comparisons in the sorting algorithm.

Space Factor:- Space is measured by counting a maximum memory space required by the algorithm.