Compilare: user.cpp: In function ‘void cit(int&)’: user.cpp:20: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘void coloreaza_drum(int)’: user.cpp:42: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int rezolve(int)’: user.cpp:48: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void dfs(int, int)’: user.cpp:93: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:114: warning: comparison between signed and unsigned integer expressions