Question

C++ problem

Please help me with it. Thank you.

Project Description / Specification Your program takes as input three integer values (same line, space separated) the first two integers, the beginning and ending value in a range of integers you are going to examine, as space separated integers. They are in that order: the first is the lower range and the second is the upper range. Calculate the sequence for each value in that range inclusive of the endpoints the third integer a value indicating whether to print each sequence: 1 (indicating yes) or 0 (indicating no) * Your program will print (look at the Mimir test cases for examples) the sequence for each number in the range on a separate line if the third input value is 1 . note in printing the sequence the numbers are followed by a comma, except for the last number in the sequence. A personal pet peeve of mine. o On a separate line, two comma separated numbers. For the sequence that is the longest, print the starting number and the length of the sequence (again, see Mimir for format) On a separate line, two comma separated numbers. For the sequence that contains the biggest number, print the starting number and the biggest number in that sequence. . Requirements I. You should check that the first two input range numbers are >= 2, and that the smallest (the first entered value) is indeed strictly smaller than the second (the second value). If not, the program prints an error message and halts Notes I. The % (modulus) operator is useful for this project 2. If you ask for a large enough element, you might overflow an integer. If you go big enough, you will overflow a long (though it will take awhile)

the output would be like this:

10-20 with sequence 10 - 30 no sequence: this is the background:

Answer 1

Required program

#include <iostream>

#include <cmath>

using namespace std;

// This function calculates the juggler sequence

void printJuggler(long n, int toPrint, long &largest, long &length)

{

// n is the number whose sequence is to be calculated

// toPrint determines whether to print or not

long a = n;

// print the first term

if (toPrint)

cout << a << ": ";

// calculate terms until last term is not 1

length = 0;

  

while (a != 1)

{

length++;

long b = 0;

// Check if previous term is even or odd

if (a % 2 == 0)

b = floor(sqrt(a));

else

b = floor(sqrt(a)*sqrt(a)*sqrt(a));

if (toPrint)

{

// print comma only if more terms exist

if (b != 1)

cout << b << ", ";

else

cout << 1 << endl;

}   

a = b;

if(b>largest)

largest = b;

}

}

int main()

{

long start, stop;

int toPrint;

cin>>start>>stop>>toPrint;

if (start<2 || stop<2 || start>=stop)

{

cout << "Please enter proper ranges! Exiting!" << endl;

return 1;

}

long maxLength = -1, globalLargest = -1;

long length, largest;

long startMaxLength, startLargest;

for(long i = start ; i <= stop ; i++)

{

largest = -1;

printJuggler(i, toPrint, largest, length);

// if longer sequence found, increase maxLength

if (length > maxLength)

{

maxLength = length;

startMaxLength = i;

}

// if larger number found in sequence, set globalLargest

if (largest > globalLargest)

{

globalLargest = largest;

startLargest = i;

}

}

// print the largest length and the largest number and starting of sequence

cout << startMaxLength << ", " << maxLength << endl;

cout << startLargest << ", " << globalLargest << endl;

return 0;

}


Sample Output:


I have explained the program in details using the comments. Your question already contains a detailed description of how to generate the numbers. I hope you find this useful.

codestation@codestation:/temp/HomeworkLib$ ./a.out 10 20 1 10: 3, 5, 11, 36, 6, 2, 1 11: 36, 6, 2, 1 12: 3, 5, 11, 36, 6, 2, 1 13: 46, 6, 2, 1 14: 3, 5, 11, 36, 6, 2, 1 15: 58, 7, 18, 4, 2, 1 16: 4, 2, 1 17: 70, 8, 2, 1 18: 4, 2, 1 19: 82, 9, 27, 140, 11, 36, 6, 2, 1 20: 4, 2, 1 19, 9 19, 146 codestation@codestation:/temp/HomeworkLib$ ./a.out 25, 11 25, 52214 codestation@codestation:/temp/HomeworkLib$ ./a.out 1 20 1 Please enter proper ranges! Exiting! codestation@codestation:/temp/HomeworkLib$ ./a.out 11 5 1 Please enter proper ranges! Exiting!