Compilare: user.cpp: In function ‘void solve(int, int, long long int&)’: user.cpp:17:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v.size(); ++i) ^ user.cpp:19:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0, gasit=0; j<vecini[v[i]].size() && !gasit; ++j) ^ user.cpp:32:26: warning: ‘maxpoz’ may be used uninitialized in this function [-Wmaybe-uninitialized] s += (maxpoz - minpoz); ^ user.cpp:24:9: warning: ‘minpoz’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(minpoz > r) minpoz = -1; ^