What does the following code do?

#include
#include
#include
using namespace std;

//Function Prototype Declaration

bool seqsearch(vectorlist, string str);
void main()
{
//variable declaration
vectorlist;
string s, ser_str;
bool found;
int i, n;

//inputting the number of strings
cout << "Enter number of strings: ";
cin >> n;

//inputting strings into vector "list"

for (i=0; i {
cin >> s;
list. push_back(s);
}
cout << "Enter string to be searched: ";
cin >> ser_str;

//function call
found=seqsearch(list, ser_str);
if(found)
cout << "String found in Vector " << endl;
else
cout << "String not found in Vector." << endl;
system("pause");
} // end main
//Function Definition

bool seqsearch(vectorlist, string str)
{
bool found=false;
int i;
for (i=0; i {
if(list[i]==str)
{ found=true;
break;
}
}
return found;
}

[a] create a class called “cycle” which has two instance integer variables as properties, “numberofwheels” and “weight.” create a constructor with two parameters, using the same variable names in the parameter list. assign each variable to numberofwheels” and “weight” respectively. write a separate application to test the class and display its properties. note: do not change the names of the instance variables or the variables listed in the constructor’s parameter list. [b] edit your class cycle by adding a default constructor which will assign the default values of 100 to represent the numberofwheels, and 1000 to represent the weight, by invoking a call to the other constructor. modify your application created in [a] to test the class.

This program should be a short piece of code that prints all of the positive integers from 1 to 100 as described more fully below. the program may contain multiple methods, and if using an oo language, should be contained within a single class or object. the program should be designed so that it begins execution when invoked through whichever mechanism is most common for the implementation language. â–ş print out all positive integers from 1 to 100, inclusive and in order. â–ş print messages to standard output, matching the sample output below. â–ş in the output, state whether the each integer is 'odd' or 'even' in the output. â–ş if the number is divisible by three, instead of stating that the number is odd or even, state that the number is 'divisible by three'. â–ş if the number is divisible by both two and three, instead of saying that the number is odd, even or divisible by three; state that the number is 'divisible by two and three'. â–ş design the logic of the loop to be as efficient as possible, using the minimal number of operations to perform the required logic. sample output the number '1' is odd. the number '2' is even. the number '3' is divisible by three. the number '6' is divisible by two and three.

For positive constants a and b, the force between two atoms in a molecule is given f(r) = −a r2 + b r3 , where r > 0 is the distance between the atoms. note: a and b are upper case letters. (a) find f '(r) = (b) find the critical point for f(r). r = (c) find f ''(r) = (d) find the value of r so that f ''(r) = 0.