using System;

​

public class Program

{

    public static void Main()

    {

        float tu = 95.0f;

        float to = 100.0f;

        float tb = 0.0f;

        int tbi = 0;

        float tn = 96.0f;

        float trg;

        float txP;

        trg = tu / to;

        txP = tn / tbi;

        Console.WriteLine(trg);

        //if (Double.IsNaN(txP) || Double.IsInfinity( txP ))throw new DivideByZeroException( );

        Console.WriteLine(txP);

        /*

        try 

        {

            txP = tn / tbi;

            Console.WriteLine(txP);

        }

        catch (DivideByZeroException) 

        {

            Console.WriteLine("Division par zéro --> tb nul");

        }

        */

    }   

}