/in/foo.cc: In function 'int main()':
/in/foo.cc:14:7: warning: statement has no effect [-Wunused-value]
  money>0.01;
  ~~~~~^~~~~
/in/foo.cc:7:14: warning: unused variable 'money' [-Wunused-variable]
  float a,m,k,money;   //20 1 0.35
              ^~~~~