Compilare: user.cpp: In function ‘int cauta(long long int, int)’: user.cpp:11:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[poz].size();i++) ^ user.cpp: In function ‘void sterge(long long int, int)’: user.cpp:17:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < G[poz].size()&&ok;i++) ^ user.cpp: In function ‘int main()’: user.cpp:22:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(in); ^ user.cpp:23:17: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(out); ^ user.cpp:24:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:26:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&cod,&x); ^