Uri problem 1043 solve

Problem :

Triangle

Adapted by Neilor Tonin, URI  Brazil

Timelimit: 1

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.

Sample Input	Sample Output
6.0 4.0 2.0	Area = 10.0

6.0 4.0 2.1

Perimetro = 12.1

Solution:

include <stdio.h>

  

int main() {

  

 float a,b,c;

 scanf("%f %f %f",&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;

}