ex9

  Write a C program  that calculates the average of three numbers entered by the user.

******** In Algorithme ********

Algorithm Variables A,B,C,avg: reals Begin write(" Enter A:") reade(A) write(" Enter B:") read(B) write(" Enter C:") read(C) avg ← (A+B+C )/3 write("the average equal :",avg) End Result ==> Enter a integer: 5 Enter a integer: 1 Enter a integer: 9 the average equal : 5

******** In C ********

#include <stdio.h> int main() { float A,B,C,avg; printf(" Enter A:"); scanf("%f",&A); printf(" Enter B:"); scanf("%f",&B); printf(" Enter C:"); scanf("%f",&C); avg = (A+B+C)/3 ; printf("the average equal:%f",avg); return 0; }

******** In C++ ********

#include <iostream> using namespace std; int main() { float A,B,C,avg; cout<<" Enter A:"; cin>>A; cout<<" Enter B:"; cin>>B; cout<<" Enter C:"; cin>>C; avg = (A+B+C)/3 ; cout<<"the average equal:"<<avg; return 0; }

******** in Python ********

A = int(input("Enter A :")) B = int(input("Enter B :")) C = int(input("Enter C :")) avg = (A+B+C)/3 print("the average equal ",avg)

******** in JAVA ********

import java.util.Scanner;
class Main {
public static void main(String[] args) {
Scanner sc = new Scanner (System.in);
System.out.print("Enter A :");
int A = sc.nextInt();
System.out.print("Enter B :");
int B = sc.nextInt();
System.out.print("Enter C :");
int C = sc.nextInt();
int  avg  = (A+B+C)/3;
System.out.print("the average equal "+avg);
}

********* in C# *******

using System;
public class Ex9 {
public static void Main(string[] args)
{ float A,B,C,M;
Console.Write("Enter A:");
A=float.Parse(System.Console.ReadLine());
Console.Write("Enter B:");
B=float.Parse(System.Console.ReadLine());
Console.Write("Enter C:");
C=float.Parse(System.Console.ReadLine());
M=(A+B+C)/3;
Console.WriteLine ("the average equal: "+M);
}
}