What this code is showing output 0 0 on codechef?

Question

1.00/5 (1 vote)

See more:

#include<stdio.h>
int main()
{
	int t,i,p1,p2,l=0,r=0;
	scanf("%d",&t);
	for(i=0;i<t;i++)
	{	scanf("%d%d",&p1,&p2);
		if(l>(p1-p2)|| l>(p2-p1))
		{	if(p1>p2)
			{	l=p1-p2;
				r=1;}
			if(p2>p1)
			{	l=p2-p1;
				r=2;}}}
	printf("%d %d",r,l);
	return 0;
}

What I have tried:

i tried this code and i think its not entering that 1st if statement.

Posted 20-Dec-17 3:48am

Member 13586730

Updated 20-Dec-17 18:05pm

jeron1

v2

Add a Solution

Comments

Richard MacCutchan 20-Dec-17 10:11am

What are the values of p1 and p2?

jeron1 20-Dec-17 10:12am

Could you explain what the code is trying to do and how it differs from you expectations? Also, that formatting makes it difficult to read your code.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2017-12-20T04:02:00

So run it through a debugger and find out exactly what it is doing, and why.
How you use it depends on your compiler system, but a quick Google for the name of your IDE and "debugger" should give you the info you need.

Put a breakpoint on the first line in the function, and run your code through the debugger. Then look at your code, and at your data and work out what should happen manually. Then single step each line checking that what you expected to happen is exactly what did. When it isn't, that's when you have a problem, and you can back-track (or run it again and look more closely) to find out why.

Sorry, but we can't do that for you - time for you to learn a new (and very, very useful) skill: debugging!

Patrice T · Answer 2 · 2017-12-20T18:04:00

Quote:
What this code is showing output 0 0 on codechef?

When you ask for help about a codeChef challenge, it is a good idea to give link to that challenge, just in order to give a chance to know what you talk about.

Advice: never pack code on same line, it just makes code more difficult to read without any benefit:

C++

#include<stdio.h>
int main()
{
	int t,i,p1,p2,l=0,r=0;
	scanf("%d",&t);
	for(i=0;i<t;i++)
	{
		scanf("%d%d",&p1,&p2);
		if(l>(p1-p2)|| l>(p2-p1))
		{
			if(p1>p2)
			{
				l=p1-p2;
				r=1;
			}
			if(p2>p1)
			{
				l=p2-p1;
				r=2;
			}
		}
	}
	printf("%d %d",r,l);
	return 0;
}

Quote:
What this code is showing output 0 0 on codechef?

The only answer is 'because it is what you requested in your code'.
To get better answer, you need to tell what is supposed to do this code.

What this code is showing output 0 0 on codechef?

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0