Compilare: user.cpp: In function ‘int gaseste(int)’: user.cpp:18: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void adauga(int)’: user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void sterge(int)’: user.cpp:42: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void DFS(int)’: user.cpp:60: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:72: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:73: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:74: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:77: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result