URI Online Judge | 1043 Triangle (Solution)

Problem Link:
https://www.urionlinejudge.com.br/judge/en/problems/view/1043

URI Online Judge | 1043

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:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

#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; }