10055 - Hashmat the Brave Warrior

All about problems in Volume 100. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

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zyxw
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Re: 10055 - Hashmat the Brave Warrior

Post by zyxw » Mon Jul 07, 2008 7:52 pm

Thanks once again mf :)
I'll follow them...
I am not totally useless, because I can still be used as a bad example :P

metalcarryon
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why wa?

Post by metalcarryon » Mon Feb 09, 2009 7:48 pm

why WA?

Code: Select all

#include<stdio.h>

int main()
{

double a,b,c;

	while(scanf("%lf %lf" ,&a ,&b)==2)
{
	
	if(a>b) 
			{
			c = a - b;
			printf("%0.lf\n",c);
			}
	if(a<b)
			{ 
			c = (b - a);
			printf("%0.lf\n",c);
			}

}
return 0;
}	
it returns 4294967296 on 4294967296 0 and vice-versa.. :roll:
thanks!

Obaida
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Re: 10055 - Hashmat the Brave Warrior

Post by Obaida » Tue Feb 10, 2009 7:25 am

what will happen if a is equal to b?

I hope u better use long long. :)
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asif_khan_ak_07
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cannot the understand the mistake

Post by asif_khan_ak_07 » Fri Apr 17, 2009 8:30 am

here is the code I wrote for problem 10055-Hasmat he brave warrior

#include<stdio.h>

int main()
{
int a,b,c;
while((scanf("%d %d",&a,&b)==2))
{

c=b-a;

if(c>0)
printf("%d\n",c);

else
printf("%d\n",-c);
}

return 0;

}


the sample input i provided yielded correct results. But when i sent the solution to Online Judge the reply was wrong answer. Is there any problem in the code? This is the first problem i tried sending to online judge. please help me. :cry:

mf
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Re: cannot the understand the mistake

Post by mf » Fri Apr 17, 2009 3:55 pm

Your program doesn't work, for example, for this input:

Code: Select all

4294967296 0

asif_khan_ak_07
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Re: cannot the understand the mistake

Post by asif_khan_ak_07 » Fri Apr 17, 2009 8:30 pm

which data type should i use?

mf
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Re: cannot the understand the mistake

Post by mf » Fri Apr 17, 2009 9:08 pm

long long or double would work fine.

asif_khan_ak_07
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Re: cannot the understand the mistake

Post by asif_khan_ak_07 » Sat Apr 18, 2009 6:35 pm

I used double and wrote the following code

#include<iostream.h>


int main()
{
double a,b,c;
while(cin>>a>>b)
{

c=a-b;

if(c>0)
cout<<c<<"\n";

else
cout<<-c<<"\n";

}

return 0;

}

but still the verdict from online judge is wrong answer

mf
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Re: cannot the understand the mistake

Post by mf » Sat Apr 18, 2009 8:31 pm

When a=b, your program now prints "-0".

And you shouldn't use iostream.h - it's been obsolete for many, many years. Replace it with:

Code: Select all

#include <iostream>
using namespace std;

mhn
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Re: 10055 - Hashmat the Brave Warrior

Post by mhn » Mon Jun 22, 2009 9:29 am

m a beginner in acm..this is the first problem i m trying to solve ..nd having a lot of difficulties in understanding..watz wrong in my code..can anyone help me??
here's my code:



#include<stdio.h>


void main()
{
long long int i,j;

while(scanf("%lld %lld",&i,&j)==2)
{
if(i<j) printf("%lld\n",j-i);
else printf("%lld\n",i-j);



}


}

mf
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Re: 10055 - Hashmat the Brave Warrior

Post by mf » Tue Jun 23, 2009 8:32 am

Don't mutilate English words! That's just rude. And use [ code] [/code] tags to post code, or else it looks ugly.

main() must return 'int'. And this int should be 0.

If your compiler thinks "void main()" is okay, then you should really consider dumping it and get yourself a real compiler. For example, gcc (its windows ports are cygwin and mingw)

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joshua.bender
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Re: 10055 - Hashmat the Brave Warrior

Post by joshua.bender » Thu Sep 03, 2009 2:34 am

Can anybody help me what is wrong? i got the Wrong answer from the judge.

Code: Select all

import java.util.*;

public class Main {

    public static void main(String args[]) {
        long x, y;
        Scanner scan = new Scanner(System.in);
        String line = scan.nextLine();
        Scanner scan2 = new Scanner(line);
        scan2.useDelimiter(" ");
        x = scan2.nextLong();
        y = scan2.nextLong();
        System.out.println((int) Math.abs(y - x));
    }
}

Chaseph
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Hashmat Warrior

Post by Chaseph » Mon Nov 16, 2009 9:29 am

Can someone tell me why my code is getting a wrong answer please. I've been having so much trouble with this being my first problem I just need a nudge to get me off the ground.

Code: Select all

import java.util.*;
import java.io.*;

class Main
{
  public static void main(String[] args) throws IOException
  {
    BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
    while (true)
    {
      String line = reader.readLine();
      if (line == null) break;
      
      StringTokenizer tokenizer = new StringTokenizer(line);
      long num1 = Long.parseLong(tokenizer.nextToken());
      long num2 = Long.parseLong(tokenizer.nextToken());
      
      System.out.println(num2 - num1);
    }
  }
}

pooanaji
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Location: India

Re: 10055 - Hashmat the Brave Warrior

Post by pooanaji » Thu May 06, 2010 9:59 pm

Hi,
I solved the problem using cin and cout. The running time was 0.340. What can i do to improve my running time? Any ideas?

Cheers,
Pooja

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sohel
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Re: 10055 - Hashmat the Brave Warrior

Post by sohel » Fri May 07, 2010 2:02 pm

use scanf() and printf()

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