Проблем с 02. Exam Preparation While-Loop - Exercise - Софтуерен университет

KristianZanev 16 Точки

Проблем с 02. Exam Preparation While-Loop - Exercise

Здравейте, моля за малко помощ с тази задача. Все още while-loop задачите са ми тъмна индия. Благодаря! Линк към задачката ⦁ Подготовка за изпит

function exam(input) {
    let inputOfbadGrades = Number(input.shift());

    let countForBadGrades=0;
    let sumGrades =0;
    let counterForGrades=0;
    let lastProblem='';

    while (countForBadGrades < inputOfbadGrades) {
        let nameOfExercise=input.shift();
        let grade=Number(input.shift());

        if (nameOfExercise=='Enough'){
            sumGrades = sumGrades/counterForGrades;
            console.log(`Average score: ${sumGrades}\nNumber of problems: ${counterForGrades}\nLast problem: ${lastProblem}`);
        
        }
        if (grade <= 4){
            countForBadGrades++
            lastProblem=nameOfExercise;
        }
        counterForGrades++
        sumGrades++
    }
    if(counterForGrades==inputOfbadGrades){
        console.log(`You need a break, ${countForBadGrades} poor grades.`);
        
    }
}
exam ([3,
    'Money',
    6,
    'Story',
    4,
    'Spring Time',
    5,
    'Bus',
    6,
    'Enough'])

Тагове:

06/02/2019 22:02:27 Programming Basics 06/02/2019 22:12:22

Tspetrova 125 Точки

Best Answer

Ето и моето решение на Java :-) Успех!

https://pastebin.com/9aEjt6VZ

07/02/2019 10:21:40

KristianZanev 16 Точки

Така проработи благодаря!

07/02/2019 19:28:46

chrisi2712 272 Точки

Здравейте, моето решение е нa C#, но логиката и последователносста на проверките е същата.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ExamPreparation
{
class Program
{
static void Main(string[] args)
{
int badGrades = int.Parse(Console.ReadLine());
string nameTask = Console.ReadLine();
int counterBadGrades = 0;
int sumGrades = 0;
int counterTasks = 0;
string lastTask = "";
bool isTheGradeBad = false;

while(nameTask!= "Enough")
{
int grade = int.Parse(Console.ReadLine());
sumGrades += grade;
counterTasks++;

if (grade<=4)
{
counterBadGrades++;

if (counterBadGrades==badGrades)
{
Console.WriteLine($"You need a break, {counterBadGrades} poor grades.");
isTheGradeBad = true;
break;
}
}

lastTask = nameTask;
nameTask = Console.ReadLine();
}

if (isTheGradeBad==false)
{
double average = sumGrades * 1.0 / counterTasks;
Console.WriteLine($"Average score: {average:F2}");
Console.WriteLine($"Number of problems: {counterTasks}");
Console.WriteLine($"Last problem: {lastTask}");
}

}
}
}

06/02/2019 22:45:49

KristianZanev 16 Точки

Така проработи благодаря!

07/02/2019 19:28:08

geotradepopov 1 Точки

Ей, благодаря за споделеното решение! Няколко часа се чудих къде ми е грешката! string nameTask = Console.ReadLine(); преди while, оправя всичко. В насоките не беше описано така.

07/02/2019 22:00:53

Hursa 2 Точки

Ако първата задача е Enough се получва делене на нула.

15/05/2019 15:17:14

Stoyan.Ivanov.87 20 Точки

Това е моето решение :)

function examPreparation(input) {

let negativeGradesLimit = Number(input.shift());

let countOfBadGrades = 0;

let sumGrades = 0;

let gradesCounter = 0;

let lastProblem;

let avgGrade;

while (countOfBadGrades < negativeGradesLimit) {

let nameofExercise = input.shift();

let grade = Number(input.shift());

if (nameofExercise == "Enough") {

avgGrade = sumGrades / gradesCounter;

console.log(`Average score: ${avgGrade.toFixed(2)}`);

console.log(`Number of problems: ${gradesCounter}`);

console.log(`Last problem: ${lastProblem}`);

break;

}

if (grade <= 4) {

countOfBadGrades++;

}

sumGrades += grade;

gradesCounter++;

lastProblem = nameofExercise;

}

if (countOfBadGrades == negativeGradesLimit) {

console.log(`You need a break, ${countOfBadGrades} poor grades.`)

}

08/02/2019 16:16:46

AlexMarinov87 15 Точки

ето го и моето решение:

function examPreparation(input) {
let badGradesAllowed = Number(input.shift());
let badGradesCounter = 0;
let goodGradesCounter = 0;
let gradesSum = 0;
let lastProblem = "";
let nameOfExcercise;
let grade = 0

while (badGradesCounter < badGradesAllowed) {
nameOfExcercise = input.shift();
grade = Number(input.shift());

if (nameOfExcercise == "Enough") {
let totalCounter = badGradesCounter + goodGradesCounter;
let averageScore = gradesSum / totalCounter;
console.log(`Average score: ${averageScore.toFixed(2)}`);
console.log(`Number of problems: ${totalCounter}`);
console.log(`Last problem: ${lastProblem} `);
break;
}
if (grade <= 4) {
badGradesCounter++;
} else {
goodGradesCounter++;
}
lastProblem = nameOfExcercise;
gradesSum += grade;
} if (badGradesCounter == badGradesAllowed) {
console.log(`You need a break, ${badGradesCounter} poor grades.`)
}
}

08/02/2019 16:17:02

Hursa 2 Точки

Какво се случва когато първата задача е Enough?

делене на нула

15/05/2019 16:14:56

Hursa 2 Точки

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ExamPrep
{
class Program
{
static void Main(string[] args)
{
int a= int.Parse(Console.ReadLine());
string lastproblem="a";
double count = 0;
double pcount = 0;
double SM = 0;
int evalution = 1;
while (true)
{
string problem = Console.ReadLine();
if (problem == "Enough")
{if (count !=0)
{
Console.WriteLine($"Average score: {(SM ) / count:F2}");
Console.WriteLine(("Number of problems: ")+count);
Console.WriteLine(("Last problem: ")+lastproblem);
break;}
else {

int count1 = 1;
Console.WriteLine(("Average score: ")+(SM) / count1);
Console.WriteLine(("Number of problems: ")+count);
Console.WriteLine(("Last problem: ")+"not");
}
}

else
{ evalution = int.Parse(Console.ReadLine());

if (evalution < 5)
{
pcount++;

if (pcount == a)
{
Console.WriteLine("You need a break, "+a + " poor grades.");
break;
}
}
}
lastproblem = problem;
SM += evalution;
count++;

}

}
}
}

15/05/2019 16:20:31