URI Problem (Triangle Types) 1045:
Triangle Types is a basic problem on URI online judge for novice problem solver.
You can find details on this Link.
import java.util.Scanner;
/**
* @Author : Muhammad Harun-Or-Roshid
* @Date : Oct 11, 2016
* @Time : 3:31:17 PM
*/
public class Uri1045 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
double a, b, c;
a = sc.nextDouble();
b = sc.nextDouble();
c = sc.nextDouble();
if (a > 0 && b > 0 && c > 0) {
double abc[] = sortDecreasing(new double[]{a, b, c});
a = abc[0];
b = abc[1];
c = abc[2];
//if A ≥ B + C, write the message: NAO FORMA TRIANGULO
if (a >= (b + c)) {
System.out.println("NAO FORMA TRIANGULO");
}
//if A2 = B2 + C2, write the message: TRIANGULO RETANGULO
else if ((a * a) == ((b * b) + (c * c))) {
System.out.println("TRIANGULO RETANGULO");
}
//if A2 > B2 + C2, write the message: TRIANGULO OBTUSANGULO
else if ((a * a) > ((b * b) + (c * c))) {
System.out.println("TRIANGULO OBTUSANGULO");
}
//if A2 < B2 + C2, write the message: TRIANGULO ACUTANGULO
else if ((a * a) < ((b * b) + (c * c))) {
System.out.println("TRIANGULO ACUTANGULO");
}
//if the three sides are the same size, write the message: TRIANGULO EQUILATERO
if (a == b && b == c && c==a) {
System.out.println("TRIANGULO EQUILATERO");
}
//if only two sides are the same and the third one is different, write the message: TRIANGULO ISOSCELES
else if ((a == b && a != c) || (b == c && b != a) || (a == c && a != b)) {
System.out.println("TRIANGULO ISOSCELES");
}
}
}
private static double[] sortDecreasing(double[] par) {
for (int i = 0; i < par.length; i++) {
for (int j = 0; j < par.length - 1; j++) {
if (par[j] < par[j + 1]) {
double temp = par[j];
par[j] = par[j + 1];
par[j + 1] = temp;
}
}
}
return par;
}
}