Submission #395502

---

Source Code Expand

#include <stdio.h>
int main (void){
  float a,b,c,d,e,f,g,h,i,j;
  float S;
  scanf("%f %f %f %f %f %f",&a,&b,&c,&d,&e,&f);
  g=c-a;
  h=d-b;
  i=e-a;
  j=f-b;
  S=(g*j-h*i)/2;
  if(S>0){
    printf("%.2f\n",S);
    return 0;
      }
  else{
    printf("%.2f\n",-S);
    return 0;
      }
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:5:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result