题解 | #计算三角形的周长和面积#

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