Compilare: user.cpp: In function ‘void dell()’: user.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (Nod<H.size()) ^ user.cpp:47:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((Nod+1)*2-1>=H.size()) ^ user.cpp:49:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if ((Nod+1)*2 == H.size()) ^ user.cpp: In function ‘int main()’: user.cpp:104:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<H.size();i++) ^ user.cpp:116:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<G[crt.poz].size();i++) ^ user.cpp:135:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<rezultat.size();i++) ^ user.cpp:81:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("marvel.in","r",stdin); ^ user.cpp:82:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld%ld%ld%ld",&n,&m,&k,&p); ^ user.cpp:84:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld",&v[i]); ^ user.cpp:86:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld",&P[i]); ^ user.cpp:89:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld%ld",&x,&y); ^