View Code of Problem 24

#include<stdio.h>
#include<math.h>
#include<string.h>
int main(int argc, char** argv) {
	
	/*
	输入三角形的边长a,b,c,求三角形的面积S。 
	
	p =周长的一半 
	p * (p - a) * (p - b) * (p - c)
	*/
	
	int a , b , c;
	scanf("%d %d %d" , &a , &b , &c );
	double p = ( a + b + c )/2.0;
	double s = sqrt( 	p * (p - a) * (p - b) * (p - c)  );	 
	printf("%.2lf" , s);
	return 0 ;
}












Double click to view unformatted code.


Back to problem 24