retea.cpp: In function 'int main()': retea.cpp:75: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x retea.cpp:75: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x retea.cpp:70: warning: unused variable 'mch' retea.cpp:68: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result retea.cpp:69: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result retea.cpp:71: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result retea.cpp:74: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result