Submission #1003186

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Source Code Expand

#include <cstdio>
using namespace std;

int main() {
  double r1, r2, r3;
  scanf("%lf%lf%lf", &r1, &r2, &r3);
  printf("%.12f\n", r1*r2/(r1+r2));
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lf%lf%lf", &r1, &r2, &r3);
                                    ^

Judge Result