Answer / yogesh

#include<stdio.h>
#define PI 3.1415
int main()
{
double area,perimeter,radius;
printf("Enter radius of Circle:");
scanf("%lf",$radius);
calculate(&area,&perimeter,radius);
printf("Area of Circle:%lf\nPerimeter of
Circle:%lf",area,perimeter);
}
calculate(double *a,double *p,double r)
{
*a=PI*r*r;
*p=2*PI*r;
}

Answer / chandu

using call by refernce

Answer / shruti

use call by refrance..-> pointers.

Answer / ara

string f()
{
return "a multiple value";
}

:) if this a trick question ...

Answer / vinayakkatkar

using if else statement
for example
int fun()
{
if(cond1)
return var1;
else
return var2;

}

char inputString[100] = {0}; To get string input from the keyboard which one of the following is better? 1) gets(inputString) 2) fgets(inputString, sizeof(inputString), fp)

1 Answers  

which function is used to clear the buffer stream on gcc? for example: I wrote following code on gcc #include<stdio.h> int main(void) { char ch; int a,b; printf("\nenter two numbers:\t"); scanf("%d%d",&a,&b); printf("enter number is %d and %d",a,b); printf("\nentercharacter:\t"); scanf("%c",&ch); printf("enter character is %c",ch); return 0; } in above progarm ch could not be scan. why?plz tell me solution.

2 Answers  

source code for delete data in array for c

1 Answers   TCS,

main( ) { void *vp; char ch = ‘g’, *cp = “goofy”; int j = 20; vp = &ch; printf(“%c”, *(char *)vp); vp = &j; printf(“%d”,*(int *)vp); vp = cp; printf(“%s”,(char *)vp + 3); }

1 Answers  

main() { char *p; p="%d\n"; p++; p++; printf(p-2,300); }

1 Answers  

write a program to find out roots of quadratic equation "x=-b+-(b^2-4ac0^-1/2/2a"

2 Answers  

how to create a 3x3 two dimensional array that will give you the sums on the left and bottom columns

0 Answers  

main() { char not; not=!2; printf("%d",not); }

1 Answers  

Is there any difference between the two declarations, 1. int foo(int *arr[]) and 2. int foo(int *arr[2])

1 Answers  

void pascal f(int i,int j,int k) { printf(“%d %d %d”,i, j, k); } void cdecl f(int i,int j,int k) { printf(“%d %d %d”,i, j, k); } main() { int i=10; f(i++,i++,i++); printf(" %d\n",i); i=10; f(i++,i++,i++); printf(" %d",i); }

1 Answers  

void main() { int i=10, j=2; int *ip= &i, *jp = &j; int k = *ip/*jp; printf(“%d”,k); }

1 Answers  

main() { printf("%x",-1<<4); }

3 Answers   HCL, Sokrati, Zoho,