【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;}<img src="http://img.blog.csdn.net/20150423120515092?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemhhb3lhcWlhbjU1Mg==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />