pipe.cpp: In function `void ReadData()': pipe.cpp:23: warning: initialization to non-pointer type `char' from NULL pipe.cpp:23: warning: argument to non-pointer type `char' from NULL pipe.cpp: In function `void Sums()': pipe.cpp:37: warning: unused variable `FILE*fout' pipe.cpp: In function `void WriteSol()': pipe.cpp:53: warning: initialization to `int' from `double' pipe.cpp:53: warning: argument to `int' from `double' pipe.cpp:53: warning: initialization to `int' from `double' pipe.cpp:53: warning: argument to `int' from `double'