Compilare: user.cpp: In function ‘void citire()’: user.cpp:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int dfs(int, int)’: user.cpp:71: warning: comparison between signed and unsigned integer expressions user.cpp:68: warning: unused variable ‘maxim’ user.cpp:68: warning: unused variable ‘j’ user.cpp: In function ‘int main()’: user.cpp:105: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:106: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘int root()’: user.cpp:33: warning: control reaches end of non-void function