URI-1043

URI Online Judge | 1043

Triangle

Adapted by Neilor Tonin, URI  Brazil

Timelimit: 1

Problem link Click here

Read three point floating values (A, B and C) and verify if is possible to make a triangle with them. If it is possible, calculate the perimeter of the triangle and print the message:

Perimetro = XX.X

If it is not possible, calculate the area of the trapezium which basis A and B and C as height, and print the message:

Area = XX.X

Input

The input file has tree floating point numbers.

Output

Print the result with one digit after the decimal point.

Input Sample	Output Sample
6.0 4.0 2.0	Area = 10.0

6.0 4.0 2.1

Perimetro = 12.1

Solutin...

#include <stdio.h>
int main()
{
    double a,b,c;
    scanf("%lf %lf %lf",&a,&b,&c);
    if (a < b + c && b < a + c && c < a + b){
        printf("Perimetro = %.1f\n", a + b + c);
    }
    else{
        printf("Area = %.1f\n", c * (a + b) / 2);
    }
    return 0;
}