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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes h 
  5.     double a,b,c,p,S;
  6.     printf("请输入三角形的三条边长：");
  7.     scanf("%lf%lf%lf",&a,&b,&c);
  8.     p=(a+b+c)/2.0;
  9.     S=sqrt(p*(p-a)*(p-b)*(p-c));
  10.     printf("该三角形的面积为：%.2f",S);
  11. 	return 0;
  12. }
  13.  
Success #stdin #stdout 0s 5292KB
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15 26 17
stdout
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请输入三角形的三条边长：该三角形的面积为：120.90
https://ideone.com/BqDsY4
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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