C/C++ :: Factorial Program With Recursion

Nov 9, 2014

I put some checks in factorial program, I am confused how 27, 40 50 is coming in output and ans is 10.

#include<stdio.h>
int fact(int n) {
if(n==1) {
printf("hello1 %d
",n);
return 1;

[code].....

View 2 Replies


ADVERTISEMENT

C/C++ :: Factorial Program - Input Number

Mar 26, 2014

I'm trying to run a factorial program but I'm getting the error statement has not effect.

here's the code

#include <iostream>
using namespace std;
int main() {
int fac = 0;
int sum = 0;

[Code] ....

the error happened in the int main section

View 3 Replies View Related

C :: Program To Calculate Factorial Of Numbers - For Loop

Feb 5, 2013

I have been working on a program to calculate the factorial of numbers. Part of my code is copied and modified from the FAQ about validating numbers in user input.

I have encountered a problem with the for loop that I am using near the end of my code. No matter what I do, it seems that my loop only does the multiplication of b = a*(a-1) and then prints. For example, inputting 5 will result in a print of 20, but the factorial is 120.

Code:
int main(void) {
char buf[BUFSIZ];
char *p;
long int a;
long int b;
long int i;

printf ("Enter a number to be factorialized: ");

[Code] ....

View 5 Replies View Related

C++ :: Program Only Accept Integer From 0-10 But Doesn't Show The Factorial

Feb 28, 2013

#include<iostream>
using namespace std;
int main() {
int a[9],x,f=1;
cout<<"Please enter an integer [0-10 only] : ";

[Code] ....

View 3 Replies View Related

C++ :: Writing Program That Computes Factorial Of Number And Displays It?

Oct 24, 2014

write a program that computes the factorial of a number and displays it. A factorial of a number (written N!) is defined as N * (N-1) * (N-2) * (N-3) ... *1 In other words, 5! = 5 * 4 * 3 * 2 * 1 = 120 and 3! = 3 * 2 * 1 + 6.

Example of output 15 is 1.30767e+012

Can't get it to display error when user enters a number lower than 2 or higher 60.

// Program to calculate factorial of a number
#include <iostream>
#include <iomanip>

[Code].....

View 13 Replies View Related

C :: Program For Counting Vowels In A String Using Recursion

Jul 31, 2014

program for counting vowels in a string using recursion ?

View 12 Replies View Related

C/C++ :: Program That Complete Binary Number Using Recursion

Mar 12, 2015

So Im trying to make a program that completes a binary number and I have to use Recursion. Heres an example:

1] ./binary_string.out 01x0
0100
0110

2] ./binary_string.out xx
00
01
10
11

Here's what I got so far but Im stuck and I don't know what's wrong/what to do.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char* convertString(char *c,int len);
int main(int argc,char *argv[]) {
int i,length;
char *cs;

[Code] ....

View 2 Replies View Related

C++ :: Program To Print Out All Booms - Minesweeper Field (recursion)

Apr 4, 2013

I'm required to write a program to print out all booms allowed requests below:

1. User will enter the address of the cell and its value.
2. Print out all booms.

How to solve it by using recursion.

View 4 Replies View Related

C++ :: Program That Uses Recursion To Find Longest Increasing Sequence From A Grid In File

Mar 25, 2013

Any examples of a c++ program that uses recursion to find the longest increasing sequence from a grid in a file. Like

2 4 6 8
10 12 14 16
18 20 22 24

I have to use a structure named Point and a structure named Sequence.

const int MAXROWS = 4;
const int MAXCOLS = 4;
const int MAXFILENAME = 255;
// Structure used to define a point (x,y) in the grid.
typedef struct {
int x, y;

[Code] .....

View 1 Replies View Related

C++ :: Using While Loop For Factorial

Mar 2, 2014

I need to write a complete program using "While Loop" to calculate 1! to 12! using just "int" variables. Only from 1 to 12 and there are no other inputs.. This is my first time using While loop.

View 2 Replies View Related

C :: Factorial Using Prime Numbers?

Feb 3, 2014

Code:

#include <stdio.h>
int find_next_prime(int num);
int is_prime(int num);
int main()

[Code]......

How would I go about counting the number of times a factorial has a specific prime number?

For example, 5! = (2^3)*(3^1)*(5^1), 6! = (2^4)*(3^2)*(5^1).

How would I begin to design my find_prime_count function in order to count how many times each occurs? My program is to read in a number between (2<=N<=100) from a text file and output the results exactly like above which I still have to figure out after, I'll assume I have to use fscanf.

View 8 Replies View Related

C :: Working Out Factorial Using Arrays

Nov 26, 2013

The code works and comes out with a correct factorial up to 69! (But this is fine I only need it to work up to 60). I was wondering if this could be simplified or optimized in any way.

Code:

#include <stdio.h>
int main(){
int number[100]; /*Created array of size 100 */
int n=34; /*19931120 summed to make 34 */
int i;

[Code].....

View 4 Replies View Related

C++ :: Calculate The Factorial With Function?

Jan 3, 2013

calculate the factorial with function

The program should then calculate the factorial of the number n, where n!= n×(n −1)...× 2×1

the output like this:

Enter number: 4
Factorial of 4! = 24
Enter number: 6
Factorial of 6! = 720
Enter number: 3
Factorial of 3! = 6
Enter number: 0
Factorial of 0! = 1
Enter number: -5
Factorial of -5! = -1
Press any key to continue . ....

View 7 Replies View Related

C++ :: For Loop Multiplication - X Factorial

Oct 18, 2013

int main() {
int x;
int y=1;
for(x=1 ; x<=12 ; x++ , y=y*x ) {
cout<<y<<'
';
}
}

This code give x! ( x factorial).

whenever ,in x<=12 , we change the 12 to any number n where n>=1 and n<=12

the code works and give the (x factorial)

for example 12!=479001600

the problem begins with the number 13.

when we put 13 like this x<=13 or for(x=1 ; x<=13 ; x++ , y=y*x )

the compiler gives a wrong result : it gives 1932053504 which is wrong because the true result is 6227020800

View 1 Replies View Related

C/C++ :: Factorial Of Large Numbers

Jul 29, 2014

I have designed a code and still i dont get the desired output ....

#include <iostream>
using namespace std;
int fact(int,int);
int arr[200]={1};
int main() {
int n,t,len=0,i=0,j,a;
cin>>t;

[Code] ....

View 3 Replies View Related

C/C++ :: Getting Prime Factorial Of Integer?

Sep 23, 2013

code of prime factorization. Example input:135 / The problem is I want to be an output of (3^3) (5^1) instead of 3,3,3,5.

here's the code:

#include <iostream>
#include <cstdlib>
#include <cmath>
using namespace std;  
void get_divisors(int n);  

[code]....

View 3 Replies View Related

C++ :: Extra Parameter In Call To Factorial

Mar 2, 2013

While running it gives the runtime error: "Extra parameter in call to factorial."

#include<iostream.h>
#include<conio.h>
int factorial(long int);
void main() {
clrscr();
long int a;
cout<<"This program displays the factorial of the number you enter."<<endl;

[Code] .....

View 15 Replies View Related

C++ :: Identifying Error In Factorial Function

Apr 8, 2014

double expression(int n, double x) {
double num=(pow((x),2*a));
double den=fact(n,a);
double sum=0;
for(int a=0; a>=0; a++)
sum=pow(x,n)*(num/den);
return sum;
}

I don't know why this isn't working. fact is a factorial function which I have tested and it works fine. But when I input, for example:

int main() {
cout<<expression(1,3)<<endl;
getch();
return 0;
}

it comes up with an error.

View 5 Replies View Related

C/C++ :: Classes - Find Factorial Of Any Given Function

Aug 2, 2014

I wrote this code to find the factorial of any given function ., works fine but when i put it in a class... it gives me an error ::assignment of read only variable fact;

#include <iostream>
using namespace std;
const static int fact=1;
class My_Factorial {
public:
int x;
void Get_Number(){
cout<<"enter a number to find its factorial";

[Code] ....

View 3 Replies View Related

C :: Function That Computes Factorial Result Of Certain Number

Aug 28, 2013

I just want to practice in the language so i wrote this simple function that computes the factorial result of a certain number. The problem is that for all numbers > 20, the results are wrong ( < 20 all good).

I already learned that normal "long" type in c is more like 32 bit int and not 64 bit like a long type in java. so I used here a "long long" type.

why am I getting strange results above the number 20? isn't 64 bit enough to hold those numbers?

Code:
long long factorial(int n);
int main() {
long long result = factorial(20);
printf("%lld",result);

[code] ...

for 21 i get: -4249290049419214848

where the right result shoud be: 51,090,942,171,709,440,000

View 8 Replies View Related

C++ :: Input From User A Positive Number N And Find Its Factorial

Oct 8, 2014

Write a C++ program that will input from the user a positive number n and find its factorial. Don’t forget to validate the input. The factorial of a positive integer n (denoted by n!) is defines as the product of the integers from 1 to n.

n! = 1* 2 * 3 * ... * (n - 1) * n

You should allow the user to continue working with your program for additional data sets.

Sample output:

Please enter a number: 5
5! = 120
Would you like to continue (Y/N)?Y
Please enter a number: 3
3! = 6

Would you like to continue (Y/N)?N
Good Bye!!

My code for what i think I'm doing is as follows:

#include <iostream>
using namespace std;
int main(){
int i=1;
int n;

[Code] ....

View 1 Replies View Related

C :: Find Factorial Of Any Number Greater Than Zero And Use Gosper Formula To Approximate It

Feb 24, 2013

I was given a question in my programming class to create a program to find the factorial of any number greater than zero and to use Gosper's formula to approximate it.

Code:
#include <stdio.h>
#include <math.h>
#define PI 3.14159265
double equation(int n);
int

[Code] ....

View 2 Replies View Related

C :: Variable Won't Change When Calculating Factorial In Euler Number Homework

Sep 27, 2014

I started to learn programming through this site two weeks or so ago. I've got a book with exercices and so on, and one of them involves calculating e within a tolerance given by the user.

The formula for calculating e is the summation of 1+(1/i!), where i -> n.

So, here's the code and I'll explain the problem below:

Code:

#include <stdio.h>
int main()
{
float error;
float terme;
float sumatori = 0;
int cicle_euler = 1;
int factorial;

[Code]...

For some reason, when I set factorial to cicle_factorial, factorial remains 0, which I find puzzling; the program always halts when 1 + sumatori is 2.0 no matter what error is.

This must be a common problem and I suspect it has to do with some distinction between variables inside a loop and variables outside it, but as I lack technical vocabulary I can't seem to find anything on Google.

View 10 Replies View Related

C# :: Algorithm With Recursion Use

May 12, 2014

To construct and write down algorithm of determination of the sum of squares of consecutive integers with recursion use. I tried to do something:

public static int RecSumSquare(int x, int n)
{
if (n < 0) throw new ArgumentException("n should be greater than zero");
if (n == 0) return 0;
else return x*x+RecSumSquare(x, n - 1);
}

But I don't know as the beginning and the end of this algorithm will look.

View 2 Replies View Related

C/C++ :: How To Decipher Recursion

May 4, 2014

Suppose I'm given the following code:

int mystery(int n){

int something;
if(n > 0)

View 1 Replies View Related

C++ :: Return A Node Using Recursion

Mar 27, 2013

So the task is to find the node with minimum value of a binary tree (not binary search tree). the input is the pointer to the root of the tree. and i cannot make recursion work when i do if conditions. here is what i have Code: ​/*function 3-takses as input the pointer to the root of the tree and returns a pointer to the node with the minimum value*/

CPPtr minimumvalue(CPPtr SP){
CPPtr min = NULL; //node of minimum value
if(SP== NULL){ // if there is a node, begin comparing
return NULL;
}
else{
if(SP->data<SP->left->data){ //if the node has smaller value than its left child
min = SP; //update node of minimum value

[code].....

no matter where i call my function i get errors like unhandled exception at some memory. how to use recursion in this?

View 6 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved