488 - Triangle Wave

All about problems in Volume 4. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

Moderator: Board moderators

Dendesha
New poster
Posts: 1
Joined: Thu Jan 31, 2013 8:55 pm

Re: 488 - Triangle Wave

Post by Dendesha » Thu Jan 31, 2013 9:00 pm

I don't know why am I getting wrong answer can any one help?

Code: Select all

#include<stdio.h>
int main()
{
	int t,n,f;
	scanf("%d",&t);
	while(t--)
	{
		scanf("%d%d",&n,&f);
		for(int l=0;l<f;l++)
		{
			for(int j=1;j<=n;j++)
			{
				for(int k=0;k<j;k++)
				{
					printf("%d",j);
				}
				printf("\n");
			}
			for(int m=n-1;m>0;m--)
			{
				for(int h=0;h<m;h++)
				{
					printf("%d",m);
				}
				printf("\n");
			}
			if(l<f-1)
			{
				printf("\n");
			}

		}
		
	}
	return 0;
}

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 - Triangle Wave

Post by brianfry713 » Fri Feb 01, 2013 9:44 pm

Input:

Code: Select all

2

3
2

4
1
AC output:

Code: Select all

1
22
333
22
1

1
22
333
22
1

1
22
333
4444
333
22
1
Check input and AC output for thousands of problems on uDebug!

omarking06
New poster
Posts: 6
Joined: Fri Mar 15, 2013 1:07 am

Re: 488 - PRESENTATION ERROR!

Post by omarking06 » Fri Mar 15, 2013 5:50 pm

Whats wrong with this code please !!! .. i checked the I/O !! and nothing !!
I got WA!

Code: Select all

#include <iostream>
using namespace std;

int main()
{
	int t,a,f;
	cin>>t;
	for (int i=0;i<t;i++)
	{
		cin>>a>>f;
		for (int i=0;i<f;i++)
		{
			for (int j=1;j<=a;j++)
			{
				cout<<j;
				for (int k=1;k<j;k++)
				{
					cout<<j;
				}
				cout<<endl;
			}

			for (int x=a-1;x>0;x--)
			{
				cout<<x;
				for (int y=x;y>1;y--)
				{
					cout<<x;
				}
				cout<<endl;
			}
			if (i==f-1) continue;
			cout<<endl;
		}	
	}
}

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 - PRESENTATION ERROR!

Post by brianfry713 » Fri Mar 15, 2013 9:11 pm

Input:

Code: Select all

2

3
2

4
3
Correct output:

Code: Select all

1
22
333
22
1

1
22
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1
Check input and AC output for thousands of problems on uDebug!

omarking06
New poster
Posts: 6
Joined: Fri Mar 15, 2013 1:07 am

Re: 488 - PRESENTATION ERROR!

Post by omarking06 » Sat Mar 16, 2013 2:01 am

here is my I/O :

Code: Select all

2
3
2
1
22
333
22
1

1
22
333
22
1
4
3
1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1
i dont see anything wrong !!

omarking06
New poster
Posts: 6
Joined: Fri Mar 15, 2013 1:07 am

Re: 488 - PRESENTATION ERROR!

Post by omarking06 » Sat Mar 16, 2013 7:30 am

Plz Help !

omarking06
New poster
Posts: 6
Joined: Fri Mar 15, 2013 1:07 am

488 - Triangle Wave

Post by omarking06 » Sat Mar 16, 2013 4:45 pm

I really dont know whats wrong with my code !?
I got WA!!!

Code: Select all

    #include <iostream>
    using namespace std;

    int main()
    {
       int t,a,f;
       cin>>t;
       for (int i=0;i<t;i++)
       {
          cin>>a>>f;
          for (int i=0;i<f;i++)
          {
             for (int j=1;j<=a;j++)
             {
                cout<<j;
                for (int k=1;k<j;k++)
                {
                   cout<<j;
                }
                cout<<endl;
             }

             for (int x=a-1;x>0;x--)
             {
                cout<<x;
                for (int y=x;y>1;y--)
                {
                   cout<<x;
                }
                cout<<endl;
             }
             if (i==f-1) continue;
             cout<<endl;
          }   
       }
    }
and here is my I/O :

Code: Select all

    2
    3
    2
    1
    22
    333
    22
    1

    1
    22
    333
    22
    1
    4
    3
    1
    22
    333
    4444
    333
    22
    1

    1
    22
    333
    4444
    333
    22
    1

    1
    22
    333
    4444
    333
    22
    1
thanks in advance .

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 - PRESENTATION ERROR!

Post by brianfry713 » Mon Mar 18, 2013 10:14 pm

See:
http://ideone.com/bOWwDv

For input:

Code: Select all

2

3
2

4
3
The correct output is:

Code: Select all

1
22
333
22
1

1
22
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1
Your output is:

Code: Select all

1
22
333
22
1

1
22
333
22
1
1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1
As you can see, there is a blank line missing.
Check input and AC output for thousands of problems on uDebug!

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 - Triangle Wave

Post by brianfry713 » Mon Mar 18, 2013 10:21 pm

Don't double post.
Check input and AC output for thousands of problems on uDebug!

mfjuzar
New poster
Posts: 3
Joined: Thu Mar 28, 2013 6:37 am

488 - Triangle Wave WA?

Post by mfjuzar » Thu Mar 28, 2013 6:46 am

Why did I keep getting WA? The program input and output is exactly the same as the problem example,
I'm browsing the forum for my problems but it seems that I already get my code right, I've checked the blank lines needed too, but still

Code: Select all

var
c,i,k,wave,cases,amp,ampd,j: integer;
a,f:array [1..10000] of integer;

begin
readln(c);
writeln;

for k:=1 to c do begin
readln(a[k]);
readln(f[k]);
if k=c then else writeln;
end;


for cases:= 1 to c do begin
	for wave:= 1 to f[cases] do begin
		for amp:= 1 to a[cases] do begin
			for i:= 1 to amp do begin
				write (amp);
			end;
			writeln;
		end;
		for ampd:= amp-1 downto 1 do begin
			for j:= ampd downto 1 do begin
				write (ampd);
			end;
		writeln;
		end;
	if wave=f[cases] then else writeln;
	end;
	if cases=c then else writeln;
end;
end.
		
		

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 - Triangle Wave WA?

Post by brianfry713 » Thu Mar 28, 2013 9:28 pm

Don't print a blank line at the start of the output.
Check input and AC output for thousands of problems on uDebug!

mfjuzar
New poster
Posts: 3
Joined: Thu Mar 28, 2013 6:37 am

Re: 488 - Triangle Wave WA?

Post by mfjuzar » Sun Mar 31, 2013 5:05 pm

brianfry713 wrote:Don't print a blank line at the start of the output.
It doesn't print any

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 - Triangle Wave WA?

Post by brianfry713 » Mon Apr 01, 2013 9:40 pm

Why is line 7 of your code writeln;?
Check input and AC output for thousands of problems on uDebug!

safait
New poster
Posts: 4
Joined: Sat Jun 08, 2013 10:49 am

488 WA

Post by safait » Wed Jun 19, 2013 9:05 am

what is the in my code:

Code: Select all

#include<stdio.h>
int main()
{

int a,f,i,j,x,t;
scanf("%d",&t);
i=t-1;
while(t-->0)
{
scanf("%d%d",&a,&f);
if(t<i)
    printf("\n");
for(i=0;i<f;i++){
    for(j=1;j<=a;j++){
        for(x=0;x<j;x++)
            printf("%d",j);
        printf("\n");
    }
    j-=2;
    for(;j>=1;j--){
        for(x=0;x<j;x++)
            printf("%d",j);
        printf("\n");
    }
    if(i<f-1)
        printf("\n");
}
}
        return 0;
}

brianfry713
Guru
Posts: 5947
Joined: Thu Sep 01, 2011 9:09 am
Location: San Jose, CA, USA

Re: 488 WA

Post by brianfry713 » Wed Jun 19, 2013 11:46 pm

Input:

Code: Select all

3

3
1

4
3

4
3
AC output:

Code: Select all

1
22
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1

1
22
333
4444
333
22
1
You are reusing i in your code that is causing the blank line not to be printed in this case.
Last edited by brianfry713 on Thu Nov 21, 2013 8:35 pm, edited 1 time in total.
Check input and AC output for thousands of problems on uDebug!

Post Reply

Return to “Volume 4 (400-499)”