题解 | #计算三角形的周长和面积#

#include<math.h>
int main()
{
    int a, b, c = 0;
    scanf("%d %d %d", &a, &b, &c);
    float circuference = a + b + c;
    if (a && b && c > 0 && a && b && c <= 100000)
    {
        float P = circuference/ 2;
        float area = sqrt(P * (P - a) * (P - b) * (P - c));
        printf("circumference=%.2f area=%.2f", circuference, area);
    }
    else
        printf("error");
    return 0;
}