Calculate Area of Circle using Pointer :
#include<stdio.h> void areaperi ( int r, float *a, float *p ) { *a = 3.14 * r * r ; *p = 2 * 3.14 * r ; } void main( ) { int radius ; float area, perimeter ; printf ( "nEnter radius of a circle " ) ; scanf ( "%d", &radius ) ; areaperi ( radius, &area, &perimeter ) ; printf ( "Area = %f", area ) ; printf ( "nPerimeter = %f", perimeter ) ; }
Output:
Enter radius of a circle 5 Area = 78.500000 Perimeter = 31.400000
:)
:(
hihi
:-)
:D
=D
:-d
;(
;-(
@-)
:P
:o
:>)
(o)
:p
:-?
(p)
:-s
(m)
8-)
:-t
:-b
b-(
:-#
=p~
$-)
(y)
(f)
x-)
(k)
(h)
cheer