URI Online Judge 1002 Area of a Circle Solution

URI Online Judge | 1002 

Area of a Circle 

Adapted by Neilor Tonin, URI  Brazil 

Timelimit: 1

Problem Description:

Problem Number:1002
Problem Name: Area of a Circle
Author’s Name:Adapted by Neilor Tonin, URI  Brazil
Timelimit: 1
Problem Category: BEGINNER.
Problem Source: https://www.urionlinejudge.com.br/judge/en/problems/view/1002
Solution in C


#include <stdio.h>
int main()
{
    double pi=3.14159,R,A;
    scanf("%lf",&R);
    A=pi*R*R;
    printf("A=%.4lf\n",A);
    return 0;
}