Code for Computer Science

Discrete event simulation  ( DES ) is the process of codifying the behavior of a complex system as an ordered sequence of well-defined  events . In this context, an  event  comprises a specific change in the system's state at a specific point in time.

Decision Statements: Conditional Statements

Random Number Generator Methods in Modeling and Simulation 1.) Middle Square Method for Random Number Generation (discussed before)          Middle Square Method for Random Number Generation 2.) Linear Congruential Generator          Linear Congruential generator |Modeling and Simulation|~xRay Pixy Linear Congruential Generator is the most widely used method for Random Number Generation. Linear Congruential Generator Produce a sequence of integers between 0 and m-1. Generate a Sequence of Random Numbers for (a, c, m) = (1, 5, 13) and Z0 = 1 Question For you Video :  Linear Congruential generator |Modeling and Simulation|~xRay Pixy Video Link https://youtu.be/h0qCg8hBfcE

Operator Precedence  in C++ Operator precedence determines which operator is performed first in an expression with more than one operator.  In C++, we use the Operator Precedence rule to solve the problem like this- (5 + 8 * 3). Precedence Determine the order in which the operators are performed. An operator with Higher Precedence is evaluated before the operator with lower precedence. https://youtu.be/5_3IN1NHa9k Video: Operator Precedence in C++ Operator Associativity Chart Multiply (*) operator has higher precedence than addition operator (+). Questions for your Practice 1.) 7 + 3 * 2                                             Ans.  13 2.) 10 + 20 * 30 Ans.  610 3.) 100 / 10 * 10 Ans.  100 4.) 100 + 200 / 10 – 3 * 10                Ans.  90 5. ) 10 /...

LOOP Optimization Rules Every Programmer must follow before the optimization of any source code.  1.) Loop transformation technique.  2.) Help to reduce optimize the execution time of a program. 3.) Basically, remove the iterations.  4.) Loop Unrolling increase the program speed by eliminating loop control instructions. Loop Optimization is a Machine Independent Technique. We can do Code optimization in the loops of the program. In loop optimization, code optimization is performed on inner loops. Methods of Loop Optimization 1.) Code Motion 2.) Loop Invariant Method 3.) Loop Jamming 4.) Loop Unrolling 5.) Strength Reduction Code Motion: Technique that moves the code outside the loop. Loop Jamming: Combining two or more loops in a single loop. Code Strength: Expressions that consumes CPU time and memory should replace with cheaper expressions. Replace Expensive Expressions (i.e., *) with cheaper ones (i.e., +) Vidoe:  ht...