Compilare: user.cpp:6: warning: integer overflow in expression user.cpp: In function ‘void cit()’: user.cpp:12: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int bfs()’: user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void flx()’: user.cpp:64: warning: comparison between signed and unsigned integer expressions user.cpp:61: warning: unused variable ‘i’ user.cpp: In function ‘void dfs(int, int)’: user.cpp:93: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void afi()’: user.cpp:116: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:122: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:123: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result