Question

Describe the code
#include<stdio.h>
#include<string.h>
#include<conio.h>
void main()
{
intx(12);
scanf(%d%");
​

Answer 1

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#include<stdio.h>

stdio stands for standard Input Output. It is header file in C which has definitions for input/output related functions , whenever you using built-in functions like printf(), scanf(), getc(), putc() etc. then you have to specify “stdio.h” header file in your program.

#include<string.h>

_________________________

#include<conio.h>

conio stands for console input output. It is a header file in C which has definitions for console related functions, whenever you using built-in functions like clrscr(), getch() etc. then you have to specify “conio.h” header file in your program.

___________________________

#include <stdio.h>

/*this is the function to compute the absolute value of a whole number.*/

int abs(int x)

{

if (x>=0) return x;

else return -x;

}

/*this is the program that uses twice the function defined above.*/

int main()

{

int x, y;

printf("Type the coordinates of a point in 2-plane, say P = (x,y). First x=");

scanf("%d", &x);

printf("Second y=");

scanf("%d", &y);

printf("The distance of the P point to the x-axis is %d. \n Its distance to the y-axis is %d. \n", abs(y), abs(x));

return 0;

}

Answer 2

standard input output.........