bcast.cpp: In function 'void rezolva()': bcast.cpp:117: warning: comparison between signed and unsigned integer expressions bcast.cpp:124: warning: comparison between signed and unsigned integer expressions bcast.cpp:108: warning: unused variable 'nr' bcast.cpp: In function 'void solve()': bcast.cpp:144: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result bcast.cpp:145: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result bcast.cpp:146: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result bcast.cpp:150: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result /tmp/cci7ZzSi.o: In function `solve()': bcast.cpp:(.text+0xb43): warning: the `gets' function is dangerous and should not be used.