P122 第三章 10题三角形的面积及三边是否能组成三角形的判断

zombie_ljh

于 2015-05-15 23:38:11 发布

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本文链接：https://blog.youkuaiyun.com/zombie_ljh/article/details/45752297

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<span style="font-family:FangSong_GB2312;font-size:18px;">#include<stdio.h>
#include<math.h>

void Judge(float a, float b, float c)
{
	
	float S,p;
	if(a+b>c&&a+c>b&&b+c>a)  
        {   
          p = (a+b+c)/2;
           S = sqrt(p*(p-a)*(p-b)*(p-c));  
           printf("该三角形面积为：%f\n",S);  
           printf("You do a good job\n"); 
        }  
	else
	printf("Oh, no,you should try again\n");
}
void main()  
{  
    float a,b,c;   
    while(1)  
    {  
      printf("please input 3 ints:\n");  
      scanf("%f %f %f",&a,&b,&c);  
      Judge(a,b,c);  
    }  </span><span style="font-family:SimSun;font-size:18px;">
}</span>

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</span>