Sending
What do You Need to Know Before Seeking Help with HTML Homework Solution?Scholars often find themselves in a situation where seeking help with an HTML homework solution is not an option. Whether you get all the help you need or not, there are some of the important keynotes every student needs to kno...
How Can Our HTML Homework Help You Write a Single Page Application?I am assuming the use of Python / Django for the back end but any web framework will do, in a normal website you have templates that define the contents of each page (for example /about would give details about the site or the compan...
Texas, USA
#include
#include
using namespace std;
// Entry point of the program
int main()
{
// Get the student's name
cout<< "Welcome to the Fall 2020-2021 Semester grading system. What is your name? ";
string name;
cin>> name;
// Get the student's course
cout<< "Hello " << name << "! Please enter the name of the course to be processed: ";
string course;
cin>> course;
// Ask if it's first time
cout<< "Hello " << name << "! If you take the " << course << " for the first time, enter YES otherwise NO: ";
string isFirstTime;
cin>>isFirstTime;
// Accept only a YES or NO answe
if (isFirstTime != "YES" &&isFirstTime != "NO")
return 0;
string grade;
if (isFirstTime == "YES")
{
// Ask for a letter grade
cout<< "What is your grade from (A,B,C,D,F)? ";
cin>> grade;
// Stop if the grade is invalid
if (grade != "A" && grade != "B" && grade != "C" && grade != "D" && grade != "F")
{
cout<< "Invalid grade selection. Goodbye..." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
// Ask for grade switch if grade is A to D and want to go S
if (grade == "A" || grade == "B" || grade == "C" || grade == "D")
{
cout<< "Do you want to switch your grade from " << grade << " to S (YES or NO)? ";
string switchGrade;
cin>>switchGrade;
if (switchGrade != "YES" &&switchGrade != "NO")
{
cout<< "Invalid grade selection. Goodbye..." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
if (switchGrade == "YES")
// Switch grade if needed
grade = "S";
}
// Ask for a grade switch for grade is F and want to go U
else if (grade == "F")
{
cout<< "Do you want to switch your grade from " << grade << " to U (YES or NO)? ";
string switchGrade;
cin>>switchGrade;
if (switchGrade != "YES" &&switchGrade != "NO")
{
cout<< "Invalid grade selection. Goodbye..." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
if (switchGrade == "YES")
// Switch grade if needed
grade = "U";
}
}
else if (isFirstTime == "NO")
{
// Ask for previous letter grade
cout<< "Please enter your previous grade from (A,B,C,D,F,S,U): ";
string previousGrade;
cin>>previousGrade;
// Stop if the grade is invalid
if (previousGrade != "A" &&previousGrade != "B" &&previousGrade != "C"
&&previousGrade != "D" &&previousGrade != "F" &&previousGrade != "S"
&&previousGrade != "U")
{
cout<< "Invalid grade selection. Goodbye..." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
// Ask for current grade
cout<< "Please enter your current grade from (A,B,C,D,F): ";
string currentGrade;
cin>>currentGrade;
// Stop if the grade is invalid
if (currentGrade != "A" &¤tGrade != "B" &¤tGrade != "C"
&¤tGrade != "D" &¤tGrade != "F")
{
cout<< "Invalid grade selection. Goodbye..." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
// Choose a new grade
cout<< "Please enter the grade you want to choose from (A,B,C,D,F,S,U): ";
string newGrade;
cin>>newGrade;
// If a student has received "U" the previous semester and got one of (A, B, C, D) in
// the current semester
if (previousGrade == "U" && (currentGrade == "A" || currentGrade == "B"
|| currentGrade == "C" || currentGrade == "D"))
{
// students cannot choose other than "S" or current letter
// grade.
if (newGrade != "S" &&newGrade != currentGrade)
{
cout<< "Invalid grade selection. If you received U before, you may choose S or current letter grade." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
}
// If a student has received an "S" previous semester and, got an "F" current semester
else if (previousGrade == "S" &¤tGrade == "F")
{
// Only F is acceptable
if (newGrade != "F")
{
cout<< "Invalid grade selection. If you received S before and fail this semester, you get F." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
}
// If a student has received an "F" previous semester and, got an "F" current semester
else if (previousGrade == "F" &¤tGrade == "F")
{
// Only F is acceptable
if (newGrade != "F")
{
cout<< "Invalid grade selection. If you received F before, and fail this semester, you get F." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
}
// The student cannot choose a higher or lower grade than the letter grade he / she has received
else if ((currentGrade == "A" || currentGrade == "B" || currentGrade == "C" || currentGrade == "D")
&&newGrade != currentGrade)
{
if (newGrade != "S")
{
cout<< "Invalid grade selection. You cannot choose a higher or lower grade than you deserve." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
}
}
grade = newGrade;
}
// Report final grade
cout<< name << ", your final grade for " << course << " is " << grade << ". Goodbye..." <<="" p="" style="box-sizing: border-box; margin: 0px; padding: 0px;">
return 0;
} /*! \file prog1.cpp
\brief Assignment 1 program
The program asks for input from the user and displays the read number as a
IEEE-754 floating point number in binary form.
*/
#include
#include
#include
/*! \fn void printBinFloat(int32_t x)
\brief Prints the given number as a IEEE-754 floating point number
\param num Number to be printed.
The function prints the number in hexadecimal, in binary and then prints
the IEEE-754 field values. After that, it prints the decoded floating point
number in binary.
*/
void printBinFloat(int32_t num)
{
// print hexadecimal number
std::cout << "0x" << std::hex << std::setw(8) << std::setfill('0') << num << " = ";
// print binary number
int tmpnum = num;
for (int i = 0; i < 8; i++) // print 8 nibbles
{
for (int i = 0; i < 4; i++) // print 4 bits
{
std::cout << (tmpnum & 0x80000000 ? '1':'0');
tmpnum <<= 1;
}
std::cout << " ";
}
std::cout << std::endl;
int sign = (num & 0x80000000) ? 1 : 0; // get the sign bit (31)
int exp = (num >> 23) & 0xFF; // get the 8 exponent bits from 23 to 30
exp -= 127; // remove bias
uint32_t sig = num & 0x7FFFFF; // get the 23 bits of significand
// print floating point fields
std::cout << "sign: " << sign << std::endl;
std::cout << " exp: 0x" << std::hex << std::setw(8) << std::setfill('0') << exp << " (" << std::dec << exp << ")" << std::endl;
std::cout << " sig: 0x" << std::hex << std::setw(8) << std::setfill('0') << sig << std::endl;
// print floating point number
std::cout << ((sign)? '-' : '+'); // print sign
if (exp == 128 && sig == 0) // infinite
{
std::cout << "inf";
}
else if (exp == -127 && sig == 0) // zero
{
std::cout << "0";
}
else // floating point value
{
// add 1 to significand
sig |= 0x800000;
// print initial zeros if negative exponent
for (int j = exp; j <= -1; j++)
{
std::cout << "0";
if (j == exp)
std::cout << ".";
}
// print 24 bits of significand
for (int i = 0; i < 24; i++)
{
std::cout << (sig & 0x800000 ? '1':'0');
if (i == exp)
std::cout << ".";
sig <<= 1;
}
// print end zeros if positive exponent
for (int j = 23; j <= exp; j++)
{
std::cout << "0";
if (j + 1 == exp)
std::cout << ".";
}
}
std::cout << std::endl;
}
/*! \fn int main()
\brief Main function
The main function for the program prompts user for a number and prints it
using the printBinFloat function. It loops until the user decides to end
the program.
*/
int main()
{
while(true)
{
uint32_t number;
std::cout << "Number? ";
std::cin >> std::hex >> number;
printBinFloat(number);
std::cout << "End program (Y/N)? ";
char quit;
std::cin >> quit;
if (quit == 'Y' || quit == 'y')
break;
std::cout << std::endl;
}
return 0;
} | File | Actions |
|---|