how to write a program to get next odd number memory (limit 400 bytes)

[aaasss]

i tried this code but it is more than 400 bytes

#include<stdio. h>
int main()
{
int x[4],i;
for(i=0;i<4;i++ )
{
scanf("%d",&x[i]);//to get all numbers from user
}
for(i=0;i<4;i++ )
{
if(x[i]%2==0)//to get the next odd number
x[i]++;
}
for(i=0;i<4;i++ )
{
printf("%d\n",x[i]);//to print odd numbers
}
return 0;
}

[newb16]

It's 280 bytes even with comments.

[aaasss]

and if the memory limit (100 bytes) how can i solve this problem???
please help me!!!

[newb16]

Can you describe the problem somewhat more detailed than "get next odd number memory" ? At least what user is expected to enter and what is supposed to be output.

[aaasss]

Given an integer 1 <= N <= 10000,you have to print the next odd number.



Input
The input file consists of series of numbers one in each line.The input is terminated by EOF.

Output
The next odd number.

Example
Input:
5
2
6
17

Output:
7
3
7
19



Take care about your fingers, do not use more than 100 bytes of code

[aaasss]

this is the problem and i hope that you help me solve it

[Nepomuk]

OK, well here are some tips about saving space:
1. The 3 loops could be merged, doing all of the task in just one loop.
2. Instead of that if-clause, you could use shorter syntax. Let me give you an example:

int a = 3;
int b = a<10 ? 1 : 2; // this means: if a<10 is true, then the expression in brackets will result in 1, otherwise in 2

So, if you adapt that, you can save some space.

Oh, and the tasks tells you that the series of numbers is terminated by EOF, not that you have exactly 4 numbers. So read them in one by one and operate on them or take them as arguments for the program.

One more thing: If I enter 3, should it give me 3 (which is an odd number) or 5 (which is the next highest odd number)?

Greetings,
Nepomuk

[weaknessforcats]

Maybe I'm missing something, but printing out the odd numbers is:

printf("%d", x[i]);

where (x[i] % 2) != 0.

Put this in a loop controlled by i and you are done.

[donbock]

Are negative numbers allowed in the input file?
What is the next odd number for -5 (is it -3 or -7)?

[johny10151981]

try this

next_odd=current_numb+(current_numb%2)+1;

It will always give you the next odd number.....

[donbock]

Prior to C99, the behavior of the "%" operator was implementation-dependent when either operand was negative. A portable solution ought to work around this limitation (or negative values ought to be trapped).