C_141105_PuntosTriangulo, C (gcc)

Language: Layout:

#include <stdio.h>
#include <math.h>

int main(void)
{
    double x1, x2, x3, y1, y2, y3;  // Coordenadas de los tres puntos
    double m12, m13;                // Pendientes
    double perimetro;               // Perimetro del triangulo
    
    printf("Entrada de Coordenadas...\n");
    printf("Coordenada punto 1:\n");
    printf("\tx1: "); scanf(" %lf", &x1);
    printf("\ty1: "); scanf(" %lf", &y1);
    printf("Coordenada punto 2:\n");
    printf("\tx2: "); scanf(" %lf", &x2);
    printf("\ty2: "); scanf(" %lf", &y2);
    printf("Coordenada punto 3:\n");
    printf("\tx3: "); scanf(" %lf", &x3);
    printf("\ty3: "); scanf(" %lf", &y3);

if((x1 == x2 && y1 == y2) ||
       (x1 == x3 && y1 == y3) ||
       (x2 == x3 && y2 == y3))
    {
        printf("Puntos repetidos.\n");
    }
    if(x1 == x2 && x1 == x3)
    {
        printf("Puntos Verticales. No hay triangulo.\n");
    }
    else if(x1 == x2 || x1 == x3 || x2 == x3)
    {
        perimetro = sqrt(pow(x1 - x2, 2) + pow(y1 - y2, 2)) + 
                    sqrt(pow(x1 - x3, 2) + pow(y1 - y3, 2)) +     
                    sqrt(pow(x3 - x2, 2) + pow(y3 - y2, 2));
        printf("Perimetro: %lf\n", perimetro);
    }
    else
    {
        m12 = (y1 - y2) / (x1 - x2);
        m13 = (y1 - y3) / (x1 - x3);
        
        if(m12 == m13 || m12 == -m13)
        {
            printf("Puntos en Linea. No hay triangulo.\n");
        }
        else
        {
            perimetro = sqrt(pow(x1 - x2, 2) + pow(y1 - y2, 2)) + 
                        sqrt(pow(x1 - x3, 2) + pow(y1 - y3, 2)) +     
                        sqrt(pow(x3 - x2, 2) + pow(y3 - y2, 2));
            printf("Perimetro: %lf\n", perimetro);
        }
    }

return 0;
}

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Compilation time: 0.13 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0.37 sec