Programming Forums > Application Development > C

blouro · Oct 2nd, 2007, 1:32 PM

i was given 10 asterics problems to do. i've completed all of them except for this one. i've given up. i can only get half of the diagram to print

its supposed to print like this

************* row 1 0 spaces ,13*
******-****** row 2 1 spaces, 12*
*****-- -***** row 3 3 spaces, 10*
****----- **** row4 5 spaces, 8*
***------- *** row5 7 spaces ,6*
**--------- **row6 9 spaces, 4*
* ----------- *row7 11 spaces, 2*
**--------- **row8 9 spaces ,4*
***------- ***row9 7 spaces ,6*
****----- ****row10 5 spaces ,8*
*****--- *****row11 3 spaces ,10*
****** -******row12 1 spaces ,12*
*************row13 0 spaces ,13*

so far i have

(Toggle Plain Text)

for(int rows = -6; rows <=6; rows++)
{
	for(int st = 1+ abs(rows)+1; st>0; st--)
	{
		printf("*");

	}
	printf("\n");
}

but this only pritns half the *'s

if anyone can help me do the other half it will be greatly appreciated.

i can only use printf(" ") printf("*") printf("\n") once in the whole block of code.

thank you

Wizard1988 · Oct 2nd, 2007, 8:09 PM

Try to come up with a mathematical expression for when a star shoudl be printed or not using x and y variables (Row vs Column)

avinashmalipatil · Oct 3rd, 2007, 4:39 AM

Here is the code...
But remember never giveup, keep trying until u find the solution..

(Toggle Plain Text)

#include<stdio.h>

int main()
{
	int row, space=0,ast=13,count;

	for(row=0;row<13;row++)
	{
	 	for(count=1;count<=ast/2;count++)
		{
			printf("*");
		}

		if(ast==13)
		{
			printf("*");
		}
				
		for(count=1;count<=space;count++)
		{
			printf(" ");
		}
		
		for(count=1;count<=ast/2;count++)
		{
			printf("*");
		}
		
		if(row<6)
		{
			if(space==0)
			{
				space++;
				ast--;
			}
			else 
			{
				space+=2;
				ast-=2;
			}
		}
		else
		{
			if(space==1)
			{
				space--;
				ast++;
			}
			else 
			{
				space-=2;
				ast+=2;
			}
		}
	 		printf("\n");
		}
return 0;
}

The Dark · Oct 3rd, 2007, 9:01 AM

avinashmalipatil: count your printfs - look at the requirements.

avinashmalipatil · Oct 4th, 2007, 12:40 AM

Here i have modified the code. If there is any mistake, let me know.

(Toggle Plain Text)

#include<stdio.h>

int main()
{
	int row, space=-1,ast=7,col;

	for(row=1;row<=13;row++)
	{
	 	for(col=1;col<=13;col++)
		{
			if(col>ast && col<=(ast+2*space+1) && ast!=7)
			{
				printf(" ");
			}
			else
			{
				printf("*");
			}
		}
		
			if(row<7)
			{
				ast--;
				space++;
			}
			else
			{
				ast++;
				space--;
			}
		
		printf("\n");
	}
return 0;
}

Seif · Oct 4th, 2007, 6:52 PM

code tags ftw

DaWei · Oct 4th, 2007, 7:32 PM

This is not an entirely straightforward problem because of the similarities between the first and second rows and the penultimate and ultimate rows, and the requirement for a minimum of printf statements.

It will require a tad of thinking beforehand to resolve those impediments. I would recommend dividing the problem horizontally (left, center, and right portions), and then incorporate that into the vertical dimension. Use value transitions as a key to behavior modification.

avinashmalipatil · Oct 5th, 2007, 12:00 AM

Quote:

Originally Posted by Seif

code tags ftw

Sorry, I didnt get you. wat do u mean by "code tags ftw"?

peaceofpi · Oct 5th, 2007, 4:17 PM

Quote:

Originally Posted by avinashmalipatil

Sorry, I didnt get you. wat do u mean by "code tags ftw"?

He means try reading the rules and using code tags so your post isn't painful to look at.

avinashmalipatil · Oct 8th, 2007, 2:17 AM

The code is so small and i dont think code tags r required. U can easily understand the code, its so simple. And there is no reply from Blouro. Is ur ploblem solved?

Oct 2nd, 2007, 1:32 PM	#1
blouro Newbie Join Date: Oct 2007 Posts: 1 Rep Power: 0	diamond asterics problem i was given 10 asterics problems to do. i've completed all of them except for this one. i've given up. i can only get half of the diagram to print its supposed to print like this ************* row 1 0 spaces ,13* ****-**** row 2 1 spaces, 12* ***-- -*** row 3 3 spaces, 10* **----- ** row4 5 spaces, 8* *------- * row5 7 spaces ,6* --------- row6 9 spaces, 4* * ----------- row7 11 spaces, 2 --------- row8 9 spaces ,4* *------- row9 7 spaces ,6 **----- *row10 5 spaces ,8 ***--- **row11 3 spaces ,10 **** -***row12 1 spaces ,12 ************row13 0 spaces ,13 so far i have (Toggle Plain Text) for(int rows = -6; rows <=6; rows++) { for(int st = 1+ abs(rows)+1; st>0; st--) { printf(""); } printf("\n"); } for(int rows = -6; rows <=6; rows++) { for(int st = 1+ abs(rows)+1; st>0; st--) { printf(""); } printf("\n"); } but this only pritns half the 's if anyone can help me do the other half it will be greatly appreciated. i can only use printf(" ") printf("") printf("\n") once in the whole block of code. thank you Last edited by big_k105; Oct 2nd, 2007 at 1:54 PM. Reason: Added Code Tags

Oct 2nd, 2007, 8:09 PM	#2
Wizard1988 Professional Programmer Join Date: Oct 2005 Location: Chitown Posts: 417 Rep Power: 4	Try to come up with a mathematical expression for when a star shoudl be printed or not using x and y variables (Row vs Column) __________________ JG-Webdesign

Oct 3rd, 2007, 4:39 AM	#3
avinashmalipatil Newbie Join Date: Sep 2007 Posts: 14 Rep Power: 0	Here is the code... But remember never giveup, keep trying until u find the solution.. (Toggle Plain Text) #include<stdio.h> int main() { int row, space=0,ast=13,count; for(row=0;row<13;row++) { for(count=1;count<=ast/2;count++) { printf(""); } if(ast==13) { printf(""); } for(count=1;count<=space;count++) { printf(" "); } for(count=1;count<=ast/2;count++) { printf(""); } if(row<6) { if(space==0) { space++; ast--; } else { space+=2; ast-=2; } } else { if(space==1) { space--; ast++; } else { space-=2; ast+=2; } } printf("\n"); } return 0; } #include<stdio.h> int main() { int row, space=0,ast=13,count; for(row=0;row<13;row++) { for(count=1;count<=ast/2;count++) { printf(""); } if(ast==13) { printf(""); } for(count=1;count<=space;count++) { printf(" "); } for(count=1;count<=ast/2;count++) { printf(""); } if(row<6) { if(space==0) { space++; ast--; } else { space+=2; ast-=2; } } else { if(space==1) { space--; ast++; } else { space-=2; ast+=2; } } printf("\n"); } return 0; } Last edited by big_k105; Oct 5th, 2007 at 4:54 PM. Reason: Added Code Tags

Oct 4th, 2007, 12:40 AM	#5
avinashmalipatil Newbie Join Date: Sep 2007 Posts: 14 Rep Power: 0	Here i have modified the code. If there is any mistake, let me know. (Toggle Plain Text) #include<stdio.h> int main() { int row, space=-1,ast=7,col; for(row=1;row<=13;row++) { for(col=1;col<=13;col++) { if(col>ast && col<=(ast+2space+1) && ast!=7) { printf(" "); } else { printf(""); } } if(row<7) { ast--; space++; } else { ast++; space--; } printf("\n"); } return 0; } #include<stdio.h> int main() { int row, space=-1,ast=7,col; for(row=1;row<=13;row++) { for(col=1;col<=13;col++) { if(col>ast && col<=(ast+2space+1) && ast!=7) { printf(" "); } else { printf(""); } } if(row<7) { ast--; space++; } else { ast++; space--; } printf("\n"); } return 0; } Last edited by big_k105; Oct 5th, 2007 at 4:54 PM. Reason: Added Code Tags

Oct 4th, 2007, 7:32 PM	#7
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	This is not an entirely straightforward problem because of the similarities between the first and second rows and the penultimate and ultimate rows, and the requirement for a minimum of printf statements. It will require a tad of thinking beforehand to resolve those impediments. I would recommend dividing the problem horizontally (left, center, and right portions), and then incorporate that into the vertical dimension. Use value transitions as a key to behavior modification. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Oct 3rd, 2007, 9:01 AM	#4
The Dark Expert Programmer Join Date: Jun 2005 Posts: 852 Rep Power: 4	avinashmalipatil: count your printfs - look at the requirements.

Oct 4th, 2007, 6:52 PM	#6
Seif Hobbyist Programmer Join Date: Jan 2006 Location: UK Posts: 215 Rep Power: 3	code tags ftw

Oct 8th, 2007, 2:17 AM	#10
avinashmalipatil Newbie Join Date: Sep 2007 Posts: 14 Rep Power: 0	The code is so small and i dont think code tags r required. U can easily understand the code, its so simple. And there is no reply from Blouro. Is ur ploblem solved? __________________ Avinash INDIA

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
<td> height problem	grimpirate	HTML / XHTML / CSS	19	May 4th, 2007 6:01 AM
Stuck with a C problem	Polaris	C++	8	Aug 19th, 2006 3:30 PM
cgi/perl script + IE problem	joyceshee	Perl	2	Jan 24th, 2006 11:10 AM
Variable array problem	Hintshigen	C	6	Apr 10th, 2005 2:35 PM
string problem when passing in linked list	quantz	C++	0	Feb 27th, 2005 10:11 AM

Programming Forums > Application Development > C

diamond asterics problem