Temperatures puzzle discussion

[nicola1]

Are you sure?
Here, you can run both. Moreover, check the exact version of Python.

[Molefi]

it works just fine now thanks. The issue was that it threw a syntax error whenever Python encountered an eval() or int() function, It seems to be resolved now though

[ELRinley]

Anybody mind explaining the behavior of the first two lines to me?
Somehow, when I remove var n = parseInt(readline()); the next line's behavior changes to fill in for it. Suddenly var temps = readline() starts pumping out "5" in the first test scenario for no apparent reason.

It's really irritating because "n" is totally unused in my code. I changed line 2 to var temps = readline().split(" "); so it's rendered into an array, and it works perfectly in every scenario, so I just use that to count the integers instead.

[niklasnguyen]

Hi, I'm new to C. I tested my solution with several given arrays on another code writing app and it worked. However it failed here. The algorithm generates 3 instead of 1 in the 1 test. I'm really clueless. Can someone help me?

for(i=0;i<n;i++){
		Abs[i]=abs(temps[i]);
		fgets(Abs,257,stdin);
    }  
	
	min=Abs[i-1];
	
	for(i=1;i<n;i++){
			
		if(Abs[i]<min){
			min=Abs[i];
		}
	}
	
	
	for(i=0;i<n;i++){
		if(Abs[i]==min){
			position=i;
			break;
			
		}
	}

[_CG_Thibaud]

readline() reads what is sent in the input stream. n=5 is sent is the input stream in your scenario. If you remove the line that reads it, next line that reads the input stream will read it.

[PhantomBougnat]

Is there a way to debug the cases we have after submitting (in C language) ?

@niklasnguyen: Because temps is an array of 'char', and you probably use it as an array of 'int'

[MarkBates]

For C++ option it seems to be the case that for and while loops cannot contain an if statement. Is this a known bug?

[MarkBates]

int v = 0;
do
{
cerr << "temperature_vect " << temperature_vect[v] << endl;

        if( abs(temperature_vect[v] < result))
        result = temperature_vect[v];

        v += 1;
}while( v<temperature_vect.size() );

I have tried putting an if statement inside of a for loop, a while loop, and a do while loop. Always crashes. I have tested with simple if statements such as if( 1 > 2) still crashes. In C++ there seems to be some sort of bug about putting if statements inside of loops...or perhaps I am loopy....

Also note when I comment out if statement the program proceeds.

[MarkBates]

include

include

include

include

include

using namespace std;

/**
* Auto-generated code below aims at helping you parse
* the standard input according to the problem statement.
**/
int main()
{
int n; // the number of temperatures to analyse

string my_int_str; // temporary hold integer string

int input;

int abs_;

int result = 5527;


cin >> n; cin.ignore();
string temps; // the n temperatures expressed as integers ranging from -273 to 5526
getline(cin, temps);

cerr << n << endl;
cerr << temps << endl;
cerr << temps[1] << endl;


// Only works if this is executed first??????  Weird
// If I comment this out program won't execute other for loop?????
// It's a mystery
for(int i =0; i<1; i++){

    cerr << "int i is " << i << endl;
}

for( int y, i = 0; (y+i) < temps.length(); y++ ) {

    int t;


    for( ; (temps[y+i] != ' ') &&( (y+i) < temps.length()); i++ ) {

        my_int_str = my_int_str + temps[y+i];

  }


    input = stoi(my_int_str);

    if( (abs(input)) < abs(result)) {
        result = input;
    } else if( ((abs(input)) == abs(result)) && (input > 0)) {
        result = input;
    }


    cerr << "input integer " << input << endl;

  my_int_str.clear();

}

// find shortest distance to 0. If a distance repeats then positive temp wins.

// Write an action using cout. DON'T FORGET THE "<< endl"
// To debug: cerr << "Debug messages..." << endl;

// cout << "result" << endl;
cout << result << endl;
}

Program won't work unless I insert that first "do nothing" for loop??? Must be haunted....

[MrAnderson]

if( abs(temperature_vect[v] < result))

You've got one of the closing parenthesis in the wrong spot.

[Bonnie1]

Hello!

When I click on "Play" I get everything green
But when I click on "Submit" it says I have an error "-273 alone". What is the meaning of this error?

I tried to run my code on XCode with N=1 and with a string which only has "-273" and the output is "273". So I don't understand why here I got "-273 alone" as an error message.

Thanks

[MrAnderson]

If the input is -273, the output should also be -273.

[Parkham]

Do you all have suggestions where I can go for further reading about this?

[Thanh7921]

I have this segmentation fault which I can not seem to get my head around. Any suggestions? I'm using Pascal to solve this.

[nicola1]

Maube you try to read a value outside of a list.

[Thanh7921]

And also, the problem seem to emerge when I'm trying to do some custom test with the input as similar negative number, and only restrict to that particular text case.

[Bonnie1]

Hello

Does anyone know what is validators 1, 3, 11 and 12?

[DavideIaiunese]

Hello, I'm doing this puzzle with Javascript. Do you have any suggestions about how to understand the "mindset" of this puzzle? For example, I know the solution will include a condition, a loop and an array - at least I suppose so - and that, among all the temps the program will throw, it must choose only the closest to 0. But how does this translate to actual code?

[_CG_SaiksyApo]

• Use split() to convert a string into an array of string
• Use parseInt() to convert a string into a number
• Use Math.abs() to compare positive and negative number to 0

[DavideIaiunese]

mmmm I still don't get it...I need to print the temperature closest to 0 among the input data. Ok.
If two numbers are equally distant from 0 the positive one is the closest. Ok.
But there are "N" number of temperatures, all ranging between -273 to 5526. It's this that I find difficult to understand. The logic. Could you help me?