the program is not runing in C

[sxy]

#include <stdio.h>
int multiplication(int a,int b)
{
int c;
c=a*b;
return c;
}
void main(void)
{
int r;
r = multiplication(2,8);
printf(“%d”,r);
}

I should get 16 but it is not runing.
why?
thanks a lot

 

[Ian Rogers]

Should this :

for(int i=0;i<10;i++)
    {
    scanf("%s",inpt);
    rollNo = atoi(inpt);
    }

be this :

for(int i=0;i<10;i++)
    {
    scanf("%s",inpt);
    rollNo[i] = atoi(inpt);
    }

Also do same for rollNo in print statement, eg use as array element....


Regards, Dana.

I'm having a bad day.. You are correct... I copied it from the online editor THEN took out the array content???? Loosing the piggin plot here...

 

[sxy]

Hi
How I can download visual studio 2022
in order to use C language
and C# language?
whenever I try to download visual studio 2022;
It says: "The installation isn't complete"
so I can't use C or C #.
thanks.

 

[Ian Rogers]

Hi
How I can download visual studio 2022
in order to use C language
and C# language?
whenever I try to download visual studio 2022;
It says: "The installation isn't complete"
so I can't use C or C #.
thanks.

How would we know whats wrong... There must be an error message at least...
Are you on win 10? did you let it install all the packages?? We can't see your display from here..

 

[sxy]

Thanks a lot for your answer.
I use windows 11.
The message says: that it didn't succeed to install part of the packages,
and that it the reason that I can't use C or C#.

 

[sxy]

#include<stdio.h>
void main()
{

int a[3][4]={3,4,7,1,-1,2,-4,7,4,7,0,-9};
int count=0,sum=0, i,j ;
//clrscr();
for(i=0;i<3,i++)
for(j=0;j<4;j++)
{
printf(“%5d”,a[j]);
if(j==4){
printf("\n");
}
if (a[j]>1&&a[j]<7)
count++;
}
printf(“\nthe count of numbers that greater than 1 and less than 7
= %d”,count);
for(j=0;j<4;j++)
sum=sum+a[0][j];
printf(“\n The sum of number in row 1 = %d”,sum);
}
Why the program isn't runing?
thanks a lot

 

[rjenkinsgb]

From a quick look:

a[ ][ ] is a two dimensional array, but in some places you only have a single subscript, eg. a[j]


for(j=0;j<4;j++)
j range 0-3

if(j==4){
j should never be 4 within the loops....

And probably others, those are just the obvious ones.

 

[sxy]

#include<stdio.h>
int main(){


int a[3][4]={3,4,7,1,-1,2,-4,7,4,7,0,-9};
int count=0,sum=0, i,j ;
//clrscr();
printf("Two dimensional array elements:\n");
for(i=0;i<3;i++) {
for(j=0;j<4;j++) {

printf(“%5d”, a[j]);
if(j==3){
printf("\n");
}
}
}
return 0;
}
This program is also not running although I fixed the error:
f(j==4) to f(j==3).
thanks a lot

 

[rjenkinsgb]

a[j]);

No you didn't - that has a single subscript.

 

[danadak]

You can check your own code here :

Online C Compiler - online editor

OnlineGDB is online IDE with c compiler. Quick and easy way to compile c program online. It supports gcc compiler for c.

www.onlinegdb.com

Regards, Dana.

 

[sxy]

#include<stdio.h>
int main()
{
int a;
//clrscr();
printf(“Enter integer number for a”);
scanf("%d",&a);
if(a>0)
outp(0x300,0x0f);
else
outp(0x300,0xf0);
return 0;
}
Hi
why the program is not runing?
thanks a lot

 

[rjenkinsgb]

"outp" is not a standard C function, it's an obsolete Microsoft special add-on that should not be used.

 

[sxy]

Thanks for your answer.
But it doesn't work with outp32 also.
Here is the code:
#include<stdio.h>
int main()
{
int a;
//clrscr();
printf(“Enter integer number for a”);
scanf("%d",&a);
if(a>0)
outp32(0x300,0x0f);
else
outp32(0x300,0xf0);
}
thanks a lot

 

[rjenkinsgb]

That's another obsolete MS kludge, an obvious variation of the previous one.

Use printf()

 

[Ian Rogers]

There is a library for out()and out32() but I very much doubt an online tool will use it...
I very much doubt win 10 would let you use them either..

I used to use out32() when I printed to the parallel port on win XP ( parallel port also now obsolete lol.. )

 

[Ian Rogers]

Maybe he is thinking of cout C++ variant..

 

[rjenkinsgb]

There is a library for out()and out32() but I very much doubt an online tool will use it...
I very much doubt win 10 would let you use them either..

I used to use out32() when I printed to the parallel port on win XP ( parallel port also now obsolete lol.. )

Exactly, they are unusable on modern hardware and non-portable to different systems anyway.

 

[sxy]

Whenever I try to download Visual Studio 2022

in order to use C language,
It says: "Couldn't install Microsoft Visualcpp.Redist.14"
and also it says: "Setup completed with warnings".
What can I do?

 

[rjenkinsgb]

What can I do?

google the problem? I've done it for you..

Read all the answers here and try each, as appropriate!

VS 2022: Couldn't install Microsoft.VisualCpp.Redist.14 - Microsoft Q&A

Microsoft Q&A is the best place to get answers to all your technical questions on Microsoft products and services. Community. Forum.

learn.microsoft.com

 

[sxy]

Thank you very much for your reply,
Unfortunately it doesn't work

 

[rjenkinsgb]

Unfortunately it doesn't work

Have you tried all seven of the solutions in that article?