Submission #111769

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Source Code Expand

#include <stdio.h>
int main(void) {
  int x1, y1, x2, y2, x3, y3, a, b, c, d, x;
  scanf("%d%d%d%d%d%d", &x1, &y1, &x2, &y2, &x3, &y3);
  a = x2-x1;
  b = y2-y1;
  c = x3-x1;
  d = y3-y1;
  x = a*d - b*c;
  if(x<0)
    x = -x;
  printf("%0.1f\n", x/2.0);
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:4:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result