Problem with program

[jimmys]

Hi! I want help about a problem that I can't understand what i should do!
I want to create a program in C that will take (from a user) three integer numbers: x, y and n, and then make the count: x/y and print the result with n decimal numerals (that gave the user before).
Has anyone an idea?

[Skizmo]

Has anyone an idea?

Yes, a good start would to buy a book or find a good online resource for learning to program.

[jimmys]

Hi! I want help about a problem that I can't understand what i should do!
I want to create a program in C that will take (from a user) three integer numbers: x, y and n, and then make the count: x/y and print the result with n decimal numerals (that gave the user before).
Has anyone an idea?

Yes, a good start would to buy a book or find a good online resource for learning to program.

i know programming well. i know how to make program that make and print the x/y result, but how it can refund n decimal numerals?? this is my question! skizmo i think that it is not very simple program, because i know well programming, but i have difficulties in this program.

[GCDEF]

i know programming well. i know how to make program that make and print the x/y result, but how it can refund n decimal numerals?? this is my question! skizmo i think that it is not very simple program, because i know well programming, but i have difficulties in this program.

Your requirement isn't clear to me. What refund? What do you mean "decimal numerals"?

[jimmys]

Your requirement isn't clear to me. What refund? What do you mean "decimal numerals"?

sorry my english is not very good. i want to make a program that if for example the user give the numbers x=5, y=7 and n=3, the program should make 5/8 and print the result: 0,714.
With other words the variable n is the number of numerals after the " , "
if n is 4, it should print 0,7142.
if n=5, it should print 0,71428.
etc.
The program should operate even if the user give a big number, for example n=3.000.
I tell again that the numbers that give the user are all integer.

[jimmys]

if for example the user give the numbers x=5, y=7 and n=3, the program should make 5/8 and print the result: 0,714.

sorry i would like to write 5/7.

[S_M_A]

Since it's plain C I have no better idea than creating the format string in code:

char fmt[10];
sprintf( fmt, "%%.%df", n );
printf( fmt, x/y );

[jimmys]

C or C++ I dont have problem... I want simply to make this program.
Thanks SMA! I will try it...

[OReubens]

you can use the * formatting to handle the decimals with using printf()

printf( "%0.*f", n, x/y);