Question

1.1. Write a function named "areFirstTwoTheSame AsLast TwoChars" that accepts a string. It returns true if the first two characters and the last two characters of the string are the same. It returns false otherwise. In addition, if the string is empty or has only one character, it also returns false. For example, these are the strings with their expected return values false falsc "AB" true "ABA" false "ABAB" trus "ABBA" false "ABCABC false "ABCCAB" true 1.2 Write a function named "checkGradeList" that accepts an array of grades (char) and its size. It will go through the list of grades, check its validity (only accept 'A', 'a', 'B', 'b', 'c, c', 'D', 'd', F', or f'). It will replace invalid values with 'l. The function will also return the number of invalid values that it has replaced using output parameter. For example, this array of {'A', 'B', 'X', 'C'} will replace one grade of 'X' with 'T' and return 1. This array of {"A") or {A', 'B', 'C', 'A'} will not do any replacement and returns 0. This array of {'X', 'Y', "Z"} will replace all with 'T' and returns 3. 1.3. Write a function named "isTheSmallest Last" that reads in from the user inputs a list of numbers until the user enters 0. It will return true if the last number is the smallest number in that list and false otherwise. In addition, it also returns the actual value of the smallest number to the caller in the output parameter. For example, if the user enters 50, 30, 40, 10, 0, it will return true and 10 in the output parameter. If the user enters 50, 10, 40, 30, 0, it will return false and 10 in the output parameter. If the user enters 0 immediately, it will return false and 0 for the smallest. - 1 - 1.4. Write a function named "check YourGrade" that reads in a character from the user and check for the following responses: 'A', 'B', 'C', 'D' or 'F' and return true if the response is 'A', 'B' or 'C" and false if 'D' or 'F". Any other response, the function will print out "Invalid grade letter. Please try again." and allow the user to retry up to 3 times, then it will return false. Here is an example of the function call and the output of several different runs: int main() { cout << (check YourGradec? "Passed" : "Failed") << endl; return 0; } Please enter your grade: B Passed Please enter your grade: F Failed Please enter your grade: Y Invalid grade letter. Please try again. Please enter your grade: N Invalid grade letter. Please try again. Please enter your grade: M Failed Please enter your grade: Y Invalid grade letter. Please try again. Please enter your grade: N Invalid grade letter. Please try again. Please enter your grade: A Passed 1.5 Write a function named "GetScore Total Without HighLow.cpp" that reads in a list of scores until the user enters a negative number. It will add all the given scores up and subtract the largest and smallest scores to get a true score total. If there are only 2 numbers or less entered, the total will be 0. Note: please do not use array or vector class. Please use only local variables to keep track the total, highest and lowest. For example, here is the output of three separate runs: -2 Please enter non-negative score: 10 Please enter non-negative score: 50 Please enter non-negative score: 20 Please enter non-negative score: 25 Please enter non-negative score: -1 The total is 45 Please enter non-negative score: 10 Please enter non-negative score: 3 Please enter non-negative score: -1 The total is 0

Answer 1

1.1

#include<iostream>
#include<string>
using namespace std;
bool areFirstTwoTheSameAsLastTwo(string str)
{
   if (str.length() == 0 || str.length() == 1)
       return false;
   string firstTwo, lastTwo;

   firstTwo = str.substr(0, 2);
   lastTwo = str.substr(str.length() - 2);

   return (firstTwo == lastTwo);
}

int main()
{
   cout << "" <<" = "<<areFirstTwoTheSameAsLastTwo("") << endl;
   cout << "A" << " = " << areFirstTwoTheSameAsLastTwo("A") << endl;
   cout << "AB" << " = " << areFirstTwoTheSameAsLastTwo("AB") << endl;
   cout << "ABA" << " = " << areFirstTwoTheSameAsLastTwo("ABA") << endl;
   cout << "ABAB" << " = " << areFirstTwoTheSameAsLastTwo("ABAB") << endl;
   system("pause");
   return 0;
}

output

1.2

C:\Users\josee\source\repos\Simple functions\Debug\Simple functions.exe A = 0 AB = 1 ABA = 0 ABAB = 1 Press any key to continue

#include<iostream>

using namespace std;

int checkGradeList(char grade[], int size)
{
   int count = 0;
   for (int i = 0; i < size; i++)
   {
       int isValidate = (grade[i] == 'A' || grade[i] == 'a' || grade[i] == 'B' || grade[i] == 'b' || grade[i] == 'C' || grade[i] == 'c' || grade[i] == 'D' || grade[i] == 'd' || grade[i] == 'F' || grade[i] == 'f');
       if (!isValidate)
       {
           grade[i] ='I';
           count++;
       }
   }
   return count;
}
int main()
{
   char grade[] = { 'A','B','X','C' };
   cout <<"Total invalid grade: "<< checkGradeList(grade, 4)<<endl;
   cout << "Grades after validation: " << endl;
   for (int i = 0; i < 4; i++)
   {
       cout<<grade[i] << endl;
   }
   system("pause");
   return 1;
}

output1.3

E C:\Users\josee\source\repos Simple functions\Debug\Simple functions.exe Total invalid grade: 1 Grades after validation: A т 1 с Press any key to continue

#include<iostream>

using namespace std;

bool isTheSamllestLast(int &smallest)
{
   int num, count = 0,lastNum;
   cout << "Enter a number and 0 to stop: ";
   cin >> num;
   while (num > 0)
   {
       if (count == 0)
       {
           smallest = num;
           lastNum = num;
       }
       if (num < smallest)
           smallest = num;
       cout << "Enter a number and 0 to stop: ";
       cin >> num;
       count++;
   }
   if (count == 0)
   {
       smallest = 0;
       return 0;
   }
   if(count==1)
   {
       return true;
   }
   if (lastNum <= smallest)
       return true;
   return false;
}
int main()
{
   int smallest;

   if(isTheSamllestLast(smallest))
   {
       cout << "Lat num is smallest." << endl;
   }
   else
   {
       cout << "Lat num is not smallest." << endl;
   }
   cout << "Smallest nume is: " << smallest << endl;
   system("pause");
   return 1;
}

output

1.4

C:\Users\josee\source\repos\Simple functions\Debug\Simple functions.exe Enter a number and to stop: 50 Enter a number and to stop: 40 Enter a number and o to stop: 30 Enter a number and to stop: 20 Enter a number and a to stop: 10 Enter a number and to stop: 0 Lat num is not smallest. Smallest nume is: 10 Press any key to continue ...

#include<iostream>

using namespace std;
bool checkYourGrade()
{
   char grade;
   cout << "Please enter your grade: ";
   cin >> grade;
   int count = 1;
   while (true)
   {
       if (grade == 'A' || grade == 'B' || grade == 'C' || grade == 'D' || grade == 'F')
           break;
       if (count == 3)
           return false;
       cout << "Invalid grade. Please try again.";
       cout << "Please enter your grade: ";
       cin >> grade;
       count++;
   }
   if (grade == 'A' || grade == 'B' || grade == 'C')
       return true;
   return false;
}
int main()
{
   cout << (checkYourGrade() ? "Passed" : "Failed") << endl;
   system("pause");
   return 0;
}

outputs

ID: Chegg\C++ Check grade\Debug Check grade.exe Please enter your grade: B Passed Press any key to continue . ..

ID: Chegg\C++ Check grade\Debug Check grade.exe Please enter your grade: Y Invalid grade. Please try again.Please enter your grade: N Invalid grade. Please try again.Please enter your grade: M Failed Press any key to continue

ID: Chegg\C++ Check grade\Debug Check grade.exe Please enter your grade: Y Invalid grade. Please try again.Please enter your grade: M Invalid grade. Please try again.Please enter your grade: A Passed Press any key to continue

1.5

#include<iostream>

using namespace std;
int GetScoreTotalWithoutHigLow()
{
   int min, max, total=0, count = 0,num;
   while (true)
   {
       cout << "Please enter non=negative score: ";
       cin >> num;
       if (num < 0)
           break;
       if (count == 0)
       {
           min = num;
           max = num;
       }
       count++;
       total += num;
       if (num < min)
           min = num;
       if (max < num)
           max = num;
   }
   if (count <= 2)
       return 0;
   return total - min - max;
}
int main()
{
   cout <<"The total is : "<< GetScoreTotalWithoutHigLow() << endl;
   system("pause");
   return 0;
}

output

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ID: Chegg\C++ Check grade\Debug Check grade.exe Please enter non=negative score: 10 Please enter non=negative score: 20 Please enter non=negative score: 50 Please enter non=negative score: 25 Please enter non=negative score: -1 The total is : 45 Press any key to continue ...