Question

C++

1: Grade

Prompt the user for name (first name only, only one word) and score (which will be input as a fixed

point number). Input the values, c&d on input failure. The score should be in the range [0, 100],

otherwise c&d.

Compute the grade and output with explanatory text.

The grade for most students according to

[85, 100]:

A

[73, 85):

B

[61, 73):

C

[49, 61):

D

[0, 49):

F

(Note that in the above I use [] to indicate that the boundary is included in the range, and () to

indicate that the boundary is not included.)

However: If the student's first name matches my first name ("Bob") or your first name, and if the

student earns less than A, then the student's grade is changed to improve it by one letter grade.

An example run of your program might go as

name score:

Ebeneezer 73

Ebeneezer gets B

Another example run of your program might go as

name score:

Bob 73

Bob gets A

(Recall that strings can be compared with the == and != operators, so it's pretty simple to test

whether the name is one of the two special names.)

Answer 1

#include<iostream>
#include <string>
#include<bits/stdc++.h>

using namespace std;
int main (){
    string name, temp, name1 = "bob", name2 = "danny";
    float grade;
    cout<<"name score: \n";
    cin>>name;
    std::fflush;
    cin>>grade;
    if(cin.fail())
    {
        cin.clear();
        cin.ignore(numeric_limits<streamsize>::max(),'\n');
        cout<<" input failure.. input grade in range [0,100] : "<<endl;
        cin>>grade;
    }

    temp=name;
    transform(temp.begin(), temp.end(), temp.begin(), ::tolower);

    if( grade >= 85 && grade <= 100 )
        cout << name << " gets A";
    else if( grade >= 73 && grade < 85 ) {
        if( temp == name1 || temp == name2 )
            cout << name << " gets A";
        else
        cout << name << " gets B";
    }
    else if( grade >= 61 && grade < 73 ) {
        if( temp == name1 || temp == name2 )
            cout << name << " gets B";
        else
        cout << name << " gets C";
    }
    else if( grade >= 49 && grade < 61 ){
        if( temp == name1 || temp == name2 )
            cout << name << " gets C";
        else
        cout<<name<<" gets D";
    }
    else if( grade >= 0 && grade < 49 ){
        if( temp == name1 || temp == name2 )
            cout << name << " gets D";
        else
        cout<<name<<" gets F";
    }

    return 0;


}