Submission #146403

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Source Code Expand

#include <iostream>
#include "stdio.h"

using namespace std;

int main (int argc, char** argv){

  float xa, xb, xc;
  float ya, yb, yc;

  scanf("%f%f%f%f%f%f",&xa,&ya,&xb,&yb,&xc,&yc);

  float a = xb - xa;
  float b = yb - ya;
  float c = xc - xa;
  float d = yc - ya;

  float seq = a * d - b * c;

  if ( seq < 0 ){
    seq = 0 - seq;
  }

  cout << (seq / 2) << endl;

  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main(int, char**)’:
./Main.cpp:11:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result