Compilare: user.cpp: In function ‘int calculateDist(int, int)’: user.cpp:59:24: warning: variable ‘dist’ set but not used [-Wunused-but-set-variable] int d1, d2, c = 0, dist; ^ user.cpp:104:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void solve()’: user.cpp:110:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < V.size (); i ++) ^ user.cpp:111:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < H.size (); j ++) { ^ user.cpp:120:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i <= V.size(); i ++) ^