C :: Recursive Function For Diagonal Winnercheck?

Oct 31, 2014

I am trying to learn so much C as possible by my own. I have learned a bit already and made my first game. I made a tictactoe with a 3x3 board that works great. But now i want to make it a NxN-board. But the problem right now is my checkwinner-function. I really don't know how I should check the diagonal for winner in the for loop. Earlier I have checked the diagonal manually like you can see down there.

Code:

for (Row = 0; Row < BOARDSIZE; Row++) {
if ((game[Row][0] == 'X' && game[Row][1] == 'X' && game[Row][2] == 'X') ||
(game[0][Row] == 'X' && game[1][Row] == 'X' && game[2][Row] == 'X') ||
(game[0][0] == 'X' && game[1][1] == 'X' && game[2][2] == 'X') ||
(game[0][2] == 'X' && game[1][1] == 'X' && game[2][0] == 'X'))
return 1;

I think I need two foor-loops in each other too and need to check the spots in the board like 0,0, 0+1,1, 0+2,2. Is that even possible?

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C++ :: Creating Diagonal Pattern By Given Function

Nov 5, 2013

How to create a diagonal pattern by the given function

void diagonal(int size, char op)

The function takes in 2 arguments, size and op and displays a diagonal line of op char. for example, diagonal (5,#) will produce the following output.

#
#
#
#
#

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C++ :: Translating Recursive Function Into Iterator Function

Nov 27, 2014

How do I change the following recursive function into a iterator function and basically what should it look like?

int f(int i) {
if(i<2)
return i;
return f(i-2)+f(i-1);
}

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C++ :: Changing Recursive Function Into Iterator Function?

Nov 29, 2014

I had the following question in my exam and received 3 out of a possible 4 marks

Here is the question:

Assume the following recursive function:
int f(int i)
{
if(i < 2)
return i;
return f(i - 2) + f(i -1);
}

Translate this function into an iterative version:

Here is my solution:

int f(int i)
{
int prev,next,final;
prev = 0;

[Code]....

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C/C++ :: Changing Recursive Function Into Iterator Function

Nov 30, 2014

I am trying to translate the following recursive function into its iterative function:

int f(int i)
{
if(i < 2)
return i;
return f(i - 2) + f(i -1);
}

This is what I tried to do:

int f(int i)
{
int prev,next,final;
prev = 0;
next = 1;
if(i==1)
final = i;

[Code] .....

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C/C++ :: Changing Recursive Function Into Iterator Function?

Nov 30, 2014

I am trying to translate the following recursive function into its iterative function:

int f(int i) {
if(i < 2)
return i;
return f(i - 2) + f(i -1);
}

This is what I tried to do:

int f(int i) {
int prev,next,final;
prev = 0;
next = 1;

[Code] ....

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C++ :: Searching Char By Diagonal Not Only The Main

Mar 6, 2015

I have a problem with searching chars by diagonal not only the main, i have a chars in vector and I need to go though all possibilities (as shown in picture) the word has to be side/2 long so here i have 9, so word has to be 4 chars long how I need to do this?

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C :: Feedback On Recursive Function

Nov 16, 2013

The recursive function is bolded, i got feedback and was told that the static variable made the function seem a lot like a iterative function but he did not say why.

Code:
#define MAX 100
#include <string.h>
#include <stdio.h>
int checkPalindrome(char string[MAX]);
int checkRecPalindrome(char string[MAX]);

[Code] .....

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C :: Recursive Function - Add All Even Numbers From N To 2

May 5, 2014

I'm writing a program that starts at a given number n and adds all the way to 2:

n + (n-2) + (n-4) + (n-6) + .....

The following is my code, it compiles but after I enter an integer the program crashes.

Code:
#include<stdio.h>
#include<stdlib.h>
int sum_even(int n);
int sum_even(int n){
if(n==1){

[Code] ....

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C :: Recursive Function Not Working

Nov 9, 2013

the functions checks if the word is a palindrome like"level" "madam" etc. but with input "dfdfdfdffdfd" my recursive function fails.

Code:

/* main.c - Created on: Nov 9, 2013 - Author: Kaj P. Madsen*/
#define MAX 100
#include <string.h>
#include <stdio.h>
int checkPalindrome(char checkString[MAX]);
int checkRecPalindrome(char checkString[MAX], int strLgt, int a);
}

[code]....

results from "dfdfdfdffdfd" added some print to see that its the variables a and strLgt not functioning properly

Code:

dfdfdfdffdfd.
The word is not a palindrome(iterative)
strLgt: 11 a: 0
a: d strLgt: dstrLgt: 10 a: 1
a: f strLgt: fstrLgt: 9 a: 2
a: d strLgt: dstrLgt: 8 a: 3
a: f strLgt: fstrLgt: 7 a: 4

The word is palindrome (recursive)

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C++ ::  From Recursive To Iterative Function

Jan 5, 2015

I am trying to make from f_rec (recursive function) to f_iter (iterative function) but I can't.

(My logic was to create a loop to calculate the results of f_rec(n-1), another loop for 2*f_rec(n-2) and one loop for f_rec(n-3);

But I'm wrong)

int f_rec(int n) {
if(n>=3)
return f_rec(n-1)+2*f_rec(n-2)+f_rec(n-3);

[Code] .....

I also think that my run time for the f_rec is 3^n ...

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C# :: Printing All Values Above The Diagonal Line In 2D Array

Apr 11, 2014

I need to print all the values in a square 2d array that are above the diagonal line. So if I have this 6x6 array for instance:

{0,0,0,0,0,0},
{1,1,1,1,1,1},
{2,2,2,2,2,2},
{3,3,3,3,3,3},
{4,4,4,4,4,4},
{5,5,5,5,5,5}

I'd have to print the elements in italics. I've tried this:

for (i = 1; i < a.GetLength(0); i++) {
for (j = i-1; j >=0; j--)
Console.Write("{0,-2}", a[i, j]);
Console.WriteLine();
}

with the array mentioned above but for some reason it keeps printing the elements BELOW the line, when I need it to print those above it. I know that for arrays we usually start loops with a value of 0 but seeing as there should be nothing to print at [0,0] I started the loop at 1.

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C/C++ :: 2D Array For Printing Both Diagonal Elements Of Matrix

Jan 31, 2014

what if we want to print both the diagonal elements!!!!

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C :: How To Print Out Recursive Function In Main

Feb 9, 2013

I am just practicing some recursion and I am having trouble with printing out a recursive function in main. Here is what I have:

Code:

// This function adds the squares 4, 5 = 4*4 + 5*5 recursiveley
int recursive_sumSquares(int m, int n) {
if (m < n) {
return m*m + recursive_SumSquares(m+1, n);
}
else {
return m*m;

[Code]...

I am getting an error that says undefined reference to 'recursive_SumSquares'

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C :: Converting For Loop To Recursive Function

Jun 10, 2013

I am working on a problem that requires a nest for loop to be converted to a recursive function. I am going to provide just the code instead of the entire program.

Code:

for (R1=1; R1 <+3, R1++){ //for loop
printf (something);
}
// the recursive function
void loopR1 (int R1, int max){
if (R1 <= max){
printf (something);

[Code]...

when calling the recursive function in main i am using the following statement...

loop r1(1,3)

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C :: Space Complexity Of Recursive Function

Jan 23, 2013

this function has to check if an array is not descending it has to be recursive and it's space complexity has to be O(log(n))

Code:

int is_sorted(int a[ ], int n) {
int check=n-1;
if(n==1 || n==0) return 1;
if(a[check]<a[check-1])return 0;
else return(is_sorted(a,n-1));
}

this is what i came up with. i know it's space complexity is O(n) how do i make it O(log(n))?

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C++ :: Convert A Recursive Function To A Loop?

Dec 13, 2014

I am trying to convert a recursive function to a loop. However, it is not working.

//recursive function
int function(int x){
if (x % 3 == 0){

[Code]....

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C++ :: Libjson Non-recursive Parser Function

Oct 8, 2013

how to write a non-recursive JSON parser function using libjson in C++. libjson is quite useful librray. It's source code of libjson comes with an example C++ parser but it uses recursion to parse JSON arrays and child nodes. I am looking for parser function based on libjson that does not use recursion to parse JSON arrays and child nodes.

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C++ :: Find Biggest Part Of Column Over Diagonal Of Matrix

Jan 23, 2013

How to find the biggest column of the matrix (higher of main diagonal) Here is the draft of code that i desighned/ Of cause it has a several mistake. My task is here to create the matrix, allocate the dynamic memory for it, and to find the biggest sum of the column elements that is located over main diagonal. So main points is correct memory allocation, and the sorting to the biggest sum of column higher than diagonal.

#include<iostream>
#include<conio.h>
#include<time.h>
using namespace std;

[Code]....

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C :: Segmentation Fault In Call To Recursive Function

Apr 12, 2014

Task: To create a recursive function to sort elements in an array of integers.

The function must start the sorting from the first element, and the recursion calls must go on until the last element in the array is sorted. In each step of recursion, the function must work only with the subset of array elements that have not been sorted yet.

Problem: I am getting a 'Segmentation fault: 11' in the recursive call to the function (please, see the code below).

Environment: Mac, OS X = Mavericks

Code:
////////////////////////////////////////////////////////////////////////////////
////////// Recursively sorting an array of ints.
////////// Arguments: array, array size, index from where to start sorting.
void sort_incr_array_int_recursive(int a[], int size, int i){
int tmp, idx_small, small = a[i];

// Locating the smaller element in the array section.

[Code] ....

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C :: Function To Find Starting Point For Recursive

Mar 6, 2015

I am trying to create a function to find the entry point of my map.But my program does not seem to be working correctly. I am trying to place a dot there because I will have to use recursion to fill up the whole map. But I'm not asking for the answer. I just need writing a function to locate the starting row for the first column of the maze (first non zero element). My code seems to have a bug in it when I try and call my function FindEntry. What I am trying to do is read in column by column until I can find the starting point and then place a dot there with ASCII character 249. This is my code so far:

Code:
#include<stdio.h>
#include<Windows.h>
#define HEIGHT 21
#define WIDTH 78

[Code]....

If you try and run it, it will give you a bug. But if you comment out the FindEntry function in the main it will work and look like this:

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C :: Reverse Array Of Characters Using Recursive Function?

Mar 15, 2014

Eg. User input : abcde
Program Output : edcba

I keep on getting weird ASCI symbol in return, I couldn't achieve what I need, and tried debugging for days,

Code: char ar[20];
int len,n=0;
printf("enter the string to be reversed :
");

[Code].....

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C++ :: Recursive Function Which Find Partition Of A Number N

May 18, 2013

I am supposed to write a recursive function which find the partition of a number n ,, for example if n=3 , it should print 1 1 1 , 1 2 , 3

I wrote the program but i am getting the two partition 1 2 and 2 1 which are the same ,, how can i avoid that ?
this is the code :

void PrintPartition( int n , int A[] , int j ) {
if( n<=0 ) {
printArray( A, j );
return ;
} for( int i=1 ; i<=n ; i++ ) {
A[j]=i;
PrintPartition( n-i , A ,j+1 );
} }

the first call of the function is : PrintPartition( n , A , 0 ) ;

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C++ :: Highest Digit In A Number (recursive Function)

Dec 23, 2013

I have this example problem in my school coursebook. How this program works? It determines the highest digit in a number.

#include <iostream>
using namespace std;
int m(int n) {
int a,b;

[Code] ....

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C++ :: Write A Recursive Function Called Sumover

Mar 8, 2014

Write a recursive function called sumover that has one argument n which is an unsigned integer. the function returns double value which is the sum of reciprocals of the first n positive integers =.

for example sumover 1 returns 1.0
sumover 2 returns 1.5 like 1/1+1/2

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C++ :: Recursive Function To Evaluate First N Terms In Series Specified

Oct 23, 2014

How to remake the code that i`ve written to have : a recursive function to evaluate the first n terms in series specified y= 1 - x + x^2/2 - x^3/6 + x^4/24 +....+(-1)^n x^n/n!

And this is my code:

#include <iostream>
using namespace std;
double power(int n, double x) {
double d =1;
for (int i = 1 ; i<=n ; i++)

[Code] ....

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