URI Online Judge Solution| 1118 Several Scores with Validation

URI Online Judge | 1118

Several Scores with Validation

By Neilor Tonin, URI  Brazil

Timelimit: 1

Write an program to read two scores of a student. Calculate and print the semester average. The program must accept only valid scores (a score must fit in the range [0.10]). Each score must be validated separately.

The program must print a message "novo cálculo (1-sim 2-nao)" that means "new calculate (1-yes 2-no)". After, the input will be (1 or 2). 1 means a new calculation, 2 means that the execution must be finished.

Input

The input file contains several positive or negative floating-point (double) values​. After the input of 2 valid scores, an integer number X will be read. Your program must stop when X = 2.

Output

If an invalid score is read, must be printed the message "nota inválida". When two valid scores are read, the message "media = " must be printed folowed by the average between these 2 scores. The message "novo cálculo (1-sim 2-nao)" must be printed after reading X. This message should be displayed again if the standard input number for X is less than 1 or greater than 2, as example below.

The output average must be printed with 2 digits after the decimal point.

Input Sample	Output Sample
-3.5 3.5 11.0 10.0 4 1 8.0 9.0 2	nota invalida nota invalida media = 6.75 novo calculo (1-sim 2-nao) novo calculo (1-sim 2-nao) media = 8.50 novo calculo (1-sim 2-nao)

Thanks to Cássio F.

URI Online Judge  Solution| 1118 Several Scores with Validation in C++

#include <iostream>

#include <iomanip>

 

using namespace std;

 

int main()

{

    float x = -1, y = -1;

    int value = 1;

 

    while(value == 1)

    {

        do{

            cin >> x;

            if(x < 0 || x > 10)

                cout << "nota invalida" << endl;

 

        }while(x < 0 || x > 10);

 

        do{

            cin >> y;

            if(y < 0 || y > 10)

                cout << "nota invalida" << endl;

 

        }while(y < 0 || y > 10);

 

        cout << "media = " << fixed << setprecision(2) << ((x + y) / 2) << endl;

 

        do{

            cout << "novo calculo (1-sim 2-nao)" << endl;

            cin >> value;

 

        }while(value != 1 && value != 2);

    }

 

    return 0;

}

This is a simple score validation program. For clearing more read the question again and again. Logic is so simple. Just code what says in the problem.
For beginner: Here since I have to first check the number that means I've to enter the loop first, so I apply here do-while loop. 

Download code from dropbox
URI Link