题解 | #计算三角形的周长和面积#
计算三角形的周长和面积
https://www.nowcoder.com/practice/109a44d649a142d483314e8a57e2c710
#include<stdio.h>
#include<math.h>
#define pi 3.1415926
int main(){
int a,b,c;
scanf("%d %d %d",&a,&b,&c);
float circumference = a+b+c;
float d = circumference/2.0;
float area = sqrt(d*(d-a)*(d-b)*(d-c));
printf("circumference=%.2f area=%.2f",circumference,area);
return 0;
}
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