【c语言】给出三角形的三边长，求三角形面积

// 给出三角形的三边长，求三角形面积
// area = sqrt( s * ( s - a ) * ( s - b ) * ( s - c ) )
// s = ( a + b + c) / 2

#include <stdio.h>
#include <math.h>

int main()
{
	int a,b,c;
	double s,area;
	printf("请输入三角形三个边长：");
	scanf("%d%d%d",&a,&b,&c);
	s = ( a + b + c) / 2;
	area = sqrt( s * ( s - a ) * ( s - b ) * ( s - c ) );
	printf("三角形面积是：%f\n",area);

	return 0;
}

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