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>
int main()
{
int a = 0;
int b = 0;
int c = 0;
float d = 0;
float circumference = 0;
float area = 0;
scanf("%d %d %d", &a, &b, &c);
circumference = a + b + c;
d = circumference/2.0;
area = sqrt(d * (d - a) * (d - b) * (d - c));//海伦公式
printf("circumference=%.2f area=%.2f", circumference, area);
return 0;
}
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