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, b, c;
double circumference = 0, area = 0;
scanf("%d%d%d", &a, &b, &c);
circumference = a + b + c;
area = sqrt(circumference / 2 * (circumference / 2 - a) *
(circumference / 2 - b) * (circumference / 2 - c));
printf("circumference=%.2lf area=%.2lf",circumference,area);
}
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