Posts by Shankye

Yup ...

if (file = fopen(file_name, "r"))
{
       printf("Exists");
       fclose(file);
}

Merry Christmas to u too ...

Apache 2.2.11
PHP 5.3.0
MySQL 5.1.36

http://www.wampserver.com/en/download.php

Its ok friend ..

Hope your problem solved now ..

Problem with exit()

exit(0);

Use { } may take few seconds more to type but they help

Check this now

#include<stdio.h>
main()
{
int a,b,c,sum=0,i;
printf("enter the numbers");
scanf("%d%d%d",&a,&b,&c);
sum=a+b+c;
for(i=sum;i<=sum ;i--)
{
        if(i==a || i==b || i==c)
        {
        printf("%d the greatest",i);
        exit(0);
        }
}
}

looks so neat and easy to understand

Did you tried to compile it??

in First line only you have so many mistakes ..

sum = o

It showed be

sum = 0

remove ` after i..

Use { } correctly

and in

printf("%d blah blah");

what you are printing ????
i ?? sum ???

Make this changes compile it,
if got error copy paste that code..

enclose within CODE tag

WTFFFF,.. Green color not showing up in my comments.. X(

Toooooooooo Cool .. Super cool...

Mera
Bharath
Mahan

Toooooooooo Cool .. Super cool...

Mera
Bharath
Mahan

:) :) :) :)

@Sean
So sweet of you .. But this community is not being sweet to others..

I had voted down for posting FULL SOURCE CODE ..

@Sean
Its C thread ..

Thank you :)

If problem solved mark this thread solved ..

Happy programming :)

@Jason

conio.h it is not part of the C standard library,

clrscr also not standard function ..

And he not doing any magic, just giving his work to system..

You want to show how to shutdown ??????????????????????

Experts are toooo busy to read full thread ..

Oh i didnt knew thr is scanf function :D

He said he couldnt use it and wanted some other way ..

@Trentacle
He casting to int directly dude how he will get correct int value??

@Vedro

You can do like this, (with some Portability issues ;) )

n = getchar()-'0';

Something good will come out ;) :D

Oopss no idea

may be consider one poly use two loops Check term by term with all remaining poly

considering p4 (in program p[0])

for(i=0; i<MAX_EXP; i++)
{
 for(j=0; j<k; j++)
 {
   for(int m=0; m<k; k++)
    {
     if(p[0].term[j].expo = p[i].term[m].expo)
        p[0].term[j].coeff += p[i].term[m].coeff;
    }
  }
}

But if exponent are in decreasing order and dont think this type of comparisn may be needed ..

Hope it helped

ok thanks

How about going 4 5 years back in schooling time and doing how we used to do in school

p1 = 3x^2 + 2x^1 + x^0
p2 = 1x^2 + 1x^1 + 2x^0
----------------
multiplying term by term

p4 = 0x^4 + 0x^3 + 6x^2 + 4x^1 + 2x^0
p5 = 0x^4 + 3x^3 + 2x^2 + 1x^1 + 0x^0
p6 = 3x^4 + 2x^3 + 1x^2 + 0x^1 + 0x^0
-------------------------------------

Adding above will give our answer ..

I think this approach will be easier ..

mul(poly p1, poly p2, poly *p3)
{
poly p[p1.noOfterms];

	for(int i=0; i<p1.noOfTerms; i++)
	{
	   for(int j=0,int k=0; j<p2.noOfTerms; j++,k++)
            {
		p[i].terms[k].coeff = p1.terms[i].coeff * p2.terms[j].coeff;
	        p[i].terms[k].expo  = p1.terms[i].expo  + p2.terms[j].expo;
	    }
	}

   // Comapare exponent and if equal add their coeff
}

ok thanks :)

How about going 4 5 years back in schooling time and doing how we used to do in school

p1 = 3x^2 + 2x^1 + x^0
p2 = 1x^2 + 1x^1 + 2x^0
----------------
multiplying term by term

p4 = 6x^2 + 4x^1 + 2x^0
p5 = 3x^3 + 2x^2 + 1x^1
p6 = 3x^4 + 2x^3 + 1x^2
-------------------------------------

Adding above will give our answer ..

I think this approach will be easier ..

mul(poly p1, poly p2, poly *p3)
{
poly p[p1.noOfterms];

	for(int i=0; i<p1.noOfTerms; i++)
	{
	   for(int j=0,int k=0; j<p2.noOfTerms; j++,k++)
            {
		p[i].terms[k].coeff = p1.terms[i].coeff * p2.terms[j].coeff;
	        p[i].terms[k].expo  = p1.terms[i].expo  + p2.terms[j].expo;
	    }
	}

   // Using a loop Comapare exponent and if equal add their coeff

}

B4 posting it want to say im student and if any mistake im sorry

May be like manually how we do ...
Assign first term of p4 to p5 and then go on checking if same exponent term exists,
If exists add thr coefficinents
and if not than add that term to p5, it will be p5.term[1]
and again go on checking again if same exponent in p4 exists if not add next term and so on ..

May be like

poly p5;

p5.term[0] = p4->term[0];
p5.noOfTerms = 1;

while( i <= k)
{
    for(i=0; i <= p5.noOfTerms; i++)
     {
        if(p5.term[i].expo == p4->term[i]->expo)
            p5.term[i].coeff += p4->term[i]->coeff ;
     }
   /* If same exponent term in p5 and p4 not found
      add that term to p5 
      and p5.noOfTerms++ */
}

And if problem solved close this thread ..

oh thts nice..
strcmp is better way stick with this but i think u need correcting on 4th line..
U scannig string so use %s and dont use address operator(&

If its working its fine :)

I not getting what help you expecting from all??????

see your code

while(1)
		{
		printf("\ntype 'ls' to see your whats in your current directory or press x to continue ");
		scanf("%c", &input);
		if(input[0] == "ls")
		{
		system(input);
		continue;
		}
		else
		{
		if (input[0] != "ls")
		break;
		
		
	}

You scanning single char with %c and thn taking suggestion to use strcmp??

Dude first tell what is input???????
<b>char???
Array of char???
pointer????</b>

what is tht??

Write to fflush all the buffers and make stdin and stdout clean..

IF possible post full code, will try to compile and check whether it works here

getch() completely worked fine for me ..

Here is code which compiled and worked for me ..

#include <stdio.h>

int main (void)
{

  char temp;
  while(1)
  {
     if( (temp=getch()) == 'x')
     {
        printf("Bye");
        exit(0);
     }
     printf("Looping");
   }
 return(0);
}

May be getc() wont return unless enter hit so use getch() which returns key pressed and neither echo it to the screen..

if   ((answer = getch()) == 'x')

First of all, when you scanning float u should use %f

scanf("%f", &num);

I think u need an int operand to to use with %..
so cast the float to int with (int)

rightdigit = (int)num % 10;

Welcome ..
Mark it solved ..

I run your program, didnt got any error ..

On 16th line while opening file you gave extra space between C: and \\

c: \\familyin.txt"

i just removed that space and program worked fine..

@Dragon I think he is opening two different files ..

One is familyin.txt and familyout.txt..
Whr you talking about those two???

Multiples of 3 gives 27

the remainder of the operation is given by modulus operator(%)

so
.
27%4 = 3 which is remainder obtained by division ..

Narue posted just b4 me .. U scan lk tht and later remove the first char (,) or else you can scan a single char and discard that char ..

String ends at space so it wont scan countinued name after space..

fscanf(pt,"%d %[^,]s ",&num,surname);
        fgetc(pt);
        fscanf(pt,"%[^\n]s",name);

pointer is not initialized ..
Following code ay help ..

#define MAX 100

data first;
data *fp;

first.name = malloc(MAX);

fp = &first;

scanf("%s",first.name);
printf("fp is %s\n",fp->name);

U can add current directory to $PATH
PATH=$PATH:.

Program works fine with scanf also but fflush(stdin) at 19 n 22 are must ..