Compilare: user.cpp: In function ‘int gaseste(int)’: user.cpp:21: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void adauga(int)’: user.cpp:35: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void sterge(int)’: user.cpp:49: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void DFS(int)’: user.cpp:66: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:77: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:78: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:79: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:82: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result