iepuras.cpp: In function 'void check()': iepuras.cpp:55: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result iepuras.cpp:62: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result iepuras.cpp:69: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result iepuras.cpp:80: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result iepuras.cpp: In function 'void read()': iepuras.cpp:139: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result iepuras.cpp:140: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result iepuras.cpp:141: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result iepuras.cpp:145: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result iepuras.cpp:156: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result iepuras.cpp:158: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result