Balconies Problem in C

Question

Hey everyone, I attempted this problem and solved up to an extent, but only last two cases are wrong, please check.

Main reason is String to int (atoi)

#include <stdio.h>
#include<string.h>

int main() {

int A, B;

char x[10], y[10], w[10], l[10];

scanf("%s %s", x, y);
scanf("%s %s", w, l);

A=x*y;
B=w*l;

if(A>B)
{
printf("Apartment A", x, y);
}
else
{
printf("Apartment B", w, l);
}

return 0;
}

https://sololearn.com/coach/24/?ref=app

Answer 1

#include <stdio.h>
#include<stdlib.h>

int main() {

int A, B;

char x[10], y[10], w[10], l[10];

scanf("%[^,],%s", x, y); // this reads first until comma into x, then skips comma, then remaining into y.
// Similarly next :

scanf("%[^,],%s", w, l);

A=atoi(x) * atoi(y); // convert both to int and multiply..

B=atoi(w) * atoi(l);

if(A>B)
{
printf("Apartment A");
}
else
{
printf("Apartment B");
}

return 0;
}

// you can also read entire string and split with comma by strtok( x, ",") ...

Answer 2

Statement are evaluated from top to bottom, and left to right.
So calculating A, B before taking values for x, y, w, l are result with garbage values.. First take input then use values in calculations.

Also strings are comma separated. Your input accept words with space separated. So 2 inputs are gathered into x, w only..

edit: Wakil Ahmad Hamidi
oh.. variables A, B, x, y, l, w are declared as int type but using %s in scanf will read it as string type. you cant store it int variables.

Answer 3

%s reads a word only, until a space encounters. So your first scanf reads 2 inputs into x, y. Not as comma separated words. w, l will be empty strings..
So you need to split x, y by delimeter comma, and separate values.
Then apply convertion function.

In output statements, what is the need of x, y, w, l ? You can remove those.

Answer 4

Jayakrishna🇮🇳
Yeah, you are correct, check it now, I edited

Answer 5

Can you please write or share the link?
Jayakrishna🇮🇳

Answer 6

Correct my code, or share the link to your code for this problem, then I may get it quickly

Answer 7

How about this?

#include <stdio.h>
#include<string.h>

int main() {

int A, B;

char x[10], y[10], w[10], l[10];

scanf("%s %s", x, y);
scanf("%s %s", w, l);

A=atoi(x*y);
B=atoi(w*l);

if(A>B)
{
printf("Apartment A", x, y);
}
else
{
printf("Apartment B", w, l);
}

return 0;
}