acces.cpp: In function 'int main()': acces.cpp:54: warning: suggest explicit braces to avoid ambiguous 'else' acces.cpp:22: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result acces.cpp:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result acces.cpp:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result acces.cpp:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result acces.cpp:59: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result acces.cpp:61: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result