Borderou de evaluare (job #317712)

Compilare: user.cpp: In function ‘int main()’: user.cpp:29:17: warning: unused variable ‘lin’ [-Wunused-variable] user.cpp:29:21: warning: unused variable ‘col’ [-Wunused-variable] user.cpp:29:34: warning: unused variable ‘ok’ [-Wunused-variable] user.cpp:27:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:28:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:30:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:43:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]