Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:59:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<Arb[nod].fii.size(); i++) { ^ user.cpp:81:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Arb[nod].fii.size(); j++) { ^ user.cpp:113:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Arb[nod].fii.size(); j++) { ^ user.cpp:150:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<Arb[nod].fii.size(); j++) { ^ user.cpp: In function ‘int numar()’: user.cpp:40:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIMBUFF, fin); ^ user.cpp:49:41: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, DIMBUFF, fin); ^ user.cpp: In function ‘int main()’: user.cpp:273:24: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] tmp = *Arb[1].S[poz]; ^ user.cpp:210:29: warning: ‘veciniComuni’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (Comuni[i][j] != veciniComuni) { ^