题解 | #计算三角形的周长和面积#
计算三角形的周长和面积
http://www.nowcoder.com/practice/109a44d649a142d483314e8a57e2c710
#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;
}