C :: Separating Number Num-by-num

Nov 7, 2014

I'm trying to separate number num-by-num but according to the example it must show 501 but it shows 510.

Code:

#include <stdio.h>
#include <math.h>
int power(int base,int expo)
{
if ( expo!=1 )
return (base*power(base,expo-1));
}

[code]....

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C++ :: Separating Numbers Using Reference

Oct 25, 2013

Write a function called breakThree that will accept a 3 digit integer and returns each of the numbers individually. This function will take four paramaters. The first parameter is the three digit number to break apart. Parameters 2 through 4 are passed by reference and will be used to return each of the numbers back to main.

You should make sure that the input into the function is a 3-digit number. If it is not a three digit number the breakThree function should simply return false. If it is a three digit number the breakThree function should break the number apart, and store each of the numbers in the parameters passed by reference.

In main you should get the number from input and then output each of the numbers on a separate line.

What not to use
global variables
cin in breakThree function
cout in breakThree function
goto statements

#include <iostream>
using namespace std;
void separate(int a, int b, int c, int d);
int main(int argc, const char * argv[]) {
int num;

[Code] ....

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C++ :: Separating Abstraction And Implementation

May 13, 2012

What is the benefit on separating the abstraction and implementation.

The below code

Code:
class FileProcessor {
public:
virtual void processFile();
};
class DocProcessor : public FileProcessor

[Code] ....

Till now it is fine. suppose DocProcessor and ExcelProcessor uses two big algorithm to process these file types then I still can have subclasses like :

class Algorithm1 : public DocProcessor
{
public:
void algorithm(); //which will be called as per the algorithm class instantiated for to process
};

[Code] ....

same for ExcelProcessor class

Here everything looks fine to me. [ I have not used the bridge pattern to separate the abstraction and implementation]. The only thing i can achieve using bridge is that the number of classes will be reduced if new class like jpgProcessor is introduced or new algorithim is introduced.

Then why it is recommended that always separate the abstraction and implementation...

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C++ :: Separating Prime Numbers In Group

May 25, 2013

I currently need separating my Prime numbers in group for my assignment. I absolutely do not know how to do this. I am able to find out if the number I used is prime and see how many prime number there are between 1-100 and then 1-1000 (168 primes) and so on. The thing that I need to do is find the number of prime numbers between 101-200, 201-300, 301-400, and so on until 901-100 and have it show on screen. Here is the exact assignment that I’m supposed to find out:

Assignment:

Write a C++ program to calculate and display the number of primes from 1 to 100,000, separated in groups of 100, 10 groups per line. To be more precise, on the first line of output, display the number of primes between 1 and 100, 101 and 200, etc., up to 901 to 1000. Then display the average primes per group. For example, there are 168 primes from 1 to 1000, so the average number of primes per group of 100 (or percentage) is 16.8. Then repeat the process for the groups of 100 between 1001 to 1100, 1101 to 1200, etc., for all groups of 1000 all the way up to 100,000. Your results should be as presented below, under testing.

Testing:

The output of your program should be the following, according to my calculations. Each group (g1, g2, etc.) is the number of primes in a group of 100 numbers. For example in line 1, g1 is the group from 1 to 100, g2 is the group 101 to 200, etc. For line 2, g1 is the group 1001 to 1100, g2 is 1101 to 1200, and g10 is the group from 1901 to 2000.

g1 g2 g3 g4 g5 g6 g7 g8 g9 g10 Average Primes
----------------------------------------------------------------
25 21 16 16 17 14 16 14 15 14 16.8 for 1 to 1000
16 12 15 11 17 12 15 12 12 13 13.5 for 1001 to 2000
14 10 15 15 10 11 15 14 12 11 12.7 for 2001 to 3000
12 10 11 15 11 14 13 12 11 11 12.0 for 3001 to 4000



7 10 5 10 7 11 7 6 11 8 8.2 for 97001 to 98000
7 5 9 9 11 8 7 8 12 11 8.7 for 98001 to 99000
8 11 8 8 7 9 8 10 10 8 8.7 for 99001 to 100000

Total number of primes from 1 to 100000: 9592
Average primes per 1000: 95.92
Percentage of primes from 1 to 100000: 9.59

Here is my code that I have done so far:

#include <iostream>
#include <string>
#include <cmath>
using namespace std;
bool isPrime(long candidate);
long primeCount (long start, long end);

[Code] ....

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C :: Reading A File In And Separating Line With Strtok Function

May 2, 2013

I'm trying to read a file from the 2nd argument, skipping the first line of the file since it's the name of the columns, and separate each line as a token, by date, subject, startTime, endTime, and location.Here's my code that I got so far:

Code:

void readAppointment(){
if (arg != 2)
exit;
else {
FILE *fp;
fp = fopen( argv[1], "r");
char line[999];

[code]....

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C++ :: Separating Routines Into A Separate Implementation And Header File

Oct 18, 2013

I am trying to separate out particular sets of routines into a separate implentation and header file which can be compiled independently to the main program such that the program source consists of a file called customers.h, customers.cpp, and exercise_1_5.cpp

Each of the files should contain the following:

customers.h should contain the definition of the customer structure and the declaration of print_customers.

customers.cpp should contain the implementation (or definition) for print_customers.

exercise_1_5.cpp should contain an include of customers.h and the main program.

This is my original code from a single .cpp file

#include<iostream>
#include<string>
using namespace std;

[Code].....

The error messages I am getting from the compiler on the customers.cpp file:

C:UsersBenDocumentsCS264lab3customers.cpp:5:22: error: variable or field 'print_customers' declared void
C:UsersBenDocumentsCS264lab3customers.cpp:5:22: error: 'customer' was not declared in this scope
C:UsersBenDocumentsCS264lab3customers.cpp:5:32: error: 'head' was not declared in this scope

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C :: Function To Round A Number To Give Integer Number That Is Closer To Real Value

Oct 9, 2013

I was told to use a round function to round a number to give an integer number that is closer to the real value. (for example if the number is 114.67 I need to print an int value of 115 instead of 114)

I am not exactly sure how a round function works, but I am told to include math.h library. What I try doesn't seem to work.

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C++ :: Search For A Number When Vector Is In Order - Count How Many Times That Number Appears

Feb 6, 2014

In this program what i'm doing is to search for a number when the vector is in order, and count how many times that number appears, the problem is that count how many times the number does not appear, but when its appear the program stays in an "standby mode" and the cursor does not move.

int buscarNumOrdenado (int x [MAX]) //MAX is the define {
int num,d, LimiteInferior, LimiteSuperior,mitad;
d=0;
LimiteInferior = 0;
LimiteSuperior = MAX-1;

[Code] ....

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C :: Program That Allow User To Enter A Number N And Print Nth Prime Number

Nov 3, 2013

I need to write a program that will allow the user to enter a number "n" and the program tell you that the nth prime number is .....

EXAMPLE

user enters 55

printf("The 55th prime number is %i", variable");

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C++ :: Input Decimal Number And Output To Be Number Scientific Notation

Apr 26, 2013

I need to write a code in c++ , to input decimal number and the output to be number in Scientific notation with 32 bits .

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C++ :: Variable Initiation - Calculate Number Of Multiplications It Took To Reach A Certain Number

Feb 19, 2014

So I have a template, part of a larger code, that is designed to calculate the number of multiplications it took to reach a certain number. The problem is, whenever I execute the program, mults is always printing out a strange number, perhaps its actual address.

template <class T>
T power3(T x, unsigned int n, unsigned int& mults) {
if (n == 0) return 1;
if (n == 1) return x;
if (n == 2){

[Code] ....

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C++ :: Receive Number From User And Output Largest Prime Number

Nov 20, 2014

I am attempting to write code that receives a number from the user and outputs the largest prime number underneath the user's number. There are no errors in my code, but no matter what number is imputed, the program says the largest prime number is 1. I cannot find where the issue is in the code. Here is the code I wrote:

#include <cstdlib>
#include <iostream>
#include <cmath>
using namespace std;
bool isPrime(int num);//function prototype

[Code] ....

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C++ :: Random Number Generator - Count How Many Times Each Number Shows Up

Sep 26, 2012

I'm running a game online and designing a program to generate Enemy Stats. Basically, it's supposed to generate 25 numbers between 0 and 7(to represent 8 Attributes on a 25 Point Buy system) and count how many times each number shows up.

Here's what the code looks like:

Code:
#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int Generate() {
int r= rand();
int s= r%7;
[Code] ....

And here's two outputs.

1: Code:

12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 12133089220 Stats[0]= 25 Stats[1]= 0 Stats[2]= 0 Stats[3]= 0 Stats[4]= 0 Stats[5]= 0 Stats[6]= 0 Stats[7]= 0 Stats[8]= 0 Disallowed system call: SYS_socketcall

2: Code:

14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 14787708434 Stats[0]= 0 Stats[1]= 0 Stats[2]= 0 Stats[3]= 0 Stats[4]= 25 Stats[5]= 0 Stats[6]= 0 Stats[7]= 0 Stats[8]= 0 Disallowed system call: SYS_socketcall

Note that the number does change, but only between runs.

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C++ :: Convert 8-digit Binary Number To Decimal Number?

Jul 6, 2013

Code: Complete the program below which converts a binary number into a decimal number. Sample outputs are shown belowComplete the program below which converts a binary number into a decimal number. Sample outputs are shown below.

Sample Output 1:

8-bit Binary Number => 11111111
Decimal Number = 255

Sample Output 2:

8-bit Binary Number => 10101010
Decimal Number = 170

Sample Output 3:

8-bit Binary Number => 101010102
Number entered is not a binary number

#include <iostream>
using namespace std;
int main()
{
int num;

[code]....

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C++ :: Find Next Palindrome Number Larger Than Input Number

Nov 14, 2014

Q. WAP to find the next palindrome number larger than the input number.

for eg:-

Input=25
Output=33

The program is giving correct output for number with all digits '9';

why is it not giving output.

#include<iostream>
#include<string>
using namespace std;
int main() {
int len,flag=1,count=0,num,ind;

[code]....

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C/C++ :: Printing Partitions Of A Number Using Constraint On Number Of Values?

Apr 15, 2014

I'm taking a C++ computer science course right now, and one of the questions on my latest assignment is this:

"A partition of an integer n is a way of writing n as a sum of positive integers. For example, for n=7, a partition is 1+1+5. Write a program that finds all the partitions of an integer n using r integers. For example, all the partitions of n=7 using r=3 integers are 1+1+5, 1+2+4, 1+3+3, 2+2+3."

I've been struggling with this problem for a couple days now, and how to do it. I understand I need a recursive function to grab variables, and probably an array or vector to store them, but where to begin.

I've been reading documents on partition generating and the concept still eludes me, and any other questions on here or other programming sites using partitions don't seem to have a constraint on them.

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C :: Asks To Input Number Nad If Outside Number Asks To Put In Number Within Bounds

Mar 23, 2013

I have to write a program that will ask you to put in a number between 0 and 9 and multiply it by pi. If the number put in is between 0 and 9 then pi is multiplied but if it isnt between 0 or 9, it will say the number is not between 0 and 9 and asks you to put it in again and will repeat until a number between 0 and 9 is put in.

I have got the program working to the extent that it the number is between 0 and 9 it will multiply it by pi but if its not between 0 and 9 it will say the number is not between 0 and 9 and ask to put in a new number.

I can't work out how to get the program to repeat itself if the number entered isnt between 0 and 9.

I have enclosed the code below .....

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C++ :: Random Number Generator Stuck On 1 Number?

Nov 21, 2013

I am working with C++ in Visual Studio. It's my first semester doing anything like this ever. Still, I am embarrassed that I am having trouble with this simple "coin flipping" program. The user tells the program how many times to "flip the coin" & then the program tells the user the results of each flip. You'll see I am randomly generating a 1 or a 2 within the function coinFlip to represent heads or tails. However, the problem is that if the user wants more than one coin flip, the "random" number stays the same for all of them, resulting in all heads or all tails. I am thinking this is an issue with the for loop that I have within the function coinFlip.

Code:

#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
using namespace std;

[Code] .....

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C++ :: Convert Binary Number Into A Decimal Number

Jul 5, 2013

Here's the part of the codes where I tried to use boolean expression:

Code:
#include <iostream>
using namespace std;
int main() {
int num;
cout << "8-bit Binary Number=";
cin >> num;

[Code] .....

How can I get started with the body?

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C :: How To Reserved Int Number And Print As Float Number

Nov 24, 2013

How to reserved int number and print as float number ?

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C++ :: Count Number Less Than Average Of All Number Combined

Mar 9, 2013

The following fuction from a class is supposed to count the number less then the average of all number combined. but it does not do that, now the fun part if you change it to count the number greater then the average it works great.

void IntegerArray::countBelowAverage() {
avrg=calcAverage(avg);
int count=0;
for(int x=0; x<100; x++) {
if (list[x]<avrg)

[Code]...

How do i get this to post in the proper format?

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C/C++ :: Find Number Of Comparison And Number Of Exchanges

Apr 20, 2015

I want to find number of comparison and number of exchanges from a list or other than a list. My list is this

12 5 11 19 4 7 8 10 9 6 22 2 9 1 32

First, I am looking for number of comparisons from a list of 10 numbers with 21inversions made by selection sort, insertion sort, exchange sort.

Also, I like to find number of exchanges from a list of 10 numbers with 21inversions made by selection sort, insertion sort, exchange sort.

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C++ :: Convert Binary Number Into Decimal Number?

Jul 5, 2013

Here's the part of the codes where I tried to use boolean expression:

#include <iostream>
using namespace std;
int main()

[Code].....

May I know that how can I get started with the body?

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C/C++ :: Program To Find Number Of Digits In Number?

Aug 20, 2014

In the c pgm to find number of digits , if I am giving 001 as the input number ,why I am not getting the no. of digits as 3?

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C :: How To Know Which Number Is Approximate The Final Number

Oct 29, 2014

I have two numbers and a number that is final number. Which number is approximate the final number ?

For example:

Our final number is : -1/2 and the two numbers is 4 and 3. How can I compare it ?
Or i have numbers more than two like 5 number or 7 number or so foth numbers and final number is : -1/2

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C :: Finding The Closest Number To Another Number

Apr 10, 2014

Try not to make too much fun of me for my logic, but I'm having trouble with this. I am trying to make it so the program takes a 1 dimensional array and a 2 dimensional array, and checks to see what row in the 2 dimensional array is the closest to the 1D array.

To compute the value of the 1D array you take the first row first element in the 2D array, and the first element in the 1D array, subtract and the absolute value.

Example: | 4 - 3 | = 1;
1Darray = 1.

Full 1 Dimensional Array:
3 1 6 9

Full 2 Dimensional Array:
4 9 1 5
6 1 7 3
0 8 2 6

To compute the value of the first row in the 2D array,
| 4 - 3 | + | 9 - 1 | + | 1 - 6 | + | 5 - 9 | = 18.
| 6 - 3 | + | 1 - 1 | + | 7 - 6 | + | 3 - 9 | = 10.
| 0 - 3 | + | 8 - 1 | + | 2 - 6 | + | 6 - 9 | = 17.

Thus row 1 being the closest row to the 1 dimensional array.

The code I've written so far seems to be going down the right path. Have a look below...

Code:
int i,j,tempRow,tempTotal = 0,firEle,cloRow;
firEle = abs( x[0][0] - y[0] );

for( i = 0; i < size; i++ ) {
tempRow = 0;
for( j = 0; j < size; j++ ) {
tempRow += abs( x[i][j] - y[j] );

[Code] ....

The whole temp part is kind of confusing myself. What I'm thinking is that I can add all row values up using

Code: tempRow += abs( x[i][j] - y[j] ); , then I need to compare that value to see if it is close to the "firEle" which is value I need to get closest to.

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