Building logic in C++

[Man4ish]

Actaully i have data in file like this

&#^!&*^$*&^!$*&^!*&^$
ACBDBCAAHDADHKADHKJAH
+++------------+++++++---
32137847894738947984774
&*($@&(&(&@$&($&@(#&
JKAHFKJAHFLKAJFHKAHFJKHF
+++-------------+++++++--
48932478974894789744747

while reading a file, i want to get the result in such a way that Alphabatical line should be first one to print and other three line should be concatenated so result wil be like
Ist line ACBDBCAAHDADHKADHKJAH
IInd line &#^!&*^$*&^!$*&^!*&^$+++------------+++++++--32137847894738947984774
IIIrd line JKAHFKJAHFLKAJFHKAHFJKHF
IVth line
&*($@(&@$($&@(#&+++-------------+++++++--48932478974894789744747

I have tried a lot every time the format is coming different. I m not getting the correct format.

[r035198x]

Post a short description of the algorithm you used for this.

[Man4ish]

Algorithm:
This is not the actual syntax, just a pseudocode.

read a file line by line
char s[500]=="\0";

if(isalpha(line))
{
cout<<line;
if(s!="\0")
cout<<s;
s="\0";
}
else
{
strcat(s,line);
}

[JosAH]

You're almost there: you have to come up with a little function that checks whether
or not a line only contains alpha(numeric)s and play a bit with reading entire
lines from an input stream.

There's one dangerous section in your code: how do you make sure that your
buffer is large enough when you append another line to it?

kind regards,

Jos

[Man4ish]

Actaully the code is not giving the correct output ,i have already played a lot.
it is giving output like
Ist line &#^!&*^$*&^!$*&^!*&^$
IInd line ACBDBCAAHDADHKADHKJAH
IIIrd line +++------------+++++++---32137847894738947984774&*($@&(&(&@$&($&@(#&
IVth line JKAHFKJAHFLKAJFHKAHFJKHF
Vth line +++-------------+++++++--48932478974894789744747


As Far as buffer is concerned i can keep it as 9999 instead of 500 and also can use assert for checking, that is not a pblm. But the main pblm is this only.
Manish
it is giving the first line

You're almost there: you have to come up with a little function that checks whether
or not a line only contains alpha(numeric)s and play a bit with reading entire
lines from an input stream.

There's one dangerous section in your code: how do you make sure that your
buffer is large enough when you append another line to it?

kind regards,

Jos

[JosAH]

Show us your actual code then; we can't keep on guessing what you *might* have
done incorrectly.

kind regards,

Jos