Compilare: user.cpp: In function ‘int main()’: user.cpp:65:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < H[b].size(); ++ j) ^ user.cpp:63:33: warning: ‘poz2’ may be used uninitialized in this function [-Wmaybe-uninitialized] int a = 0, b = 0, poz1, poz2; ^ user.cpp:72:50: warning: ‘poz1’ may be used uninitialized in this function [-Wmaybe-uninitialized] double NewDist1 = sqrt(d * d + (H[b][poz1] - a) * (H[b][poz1] - a)); ^