Compilare: user.cpp: In function ‘bool exec(T, int, int, Vector, int, vPos&)’: user.cpp:17:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x<0 || y<0 || x>=V.size() || y>=V[x].size()) return 0; ~^~~~~~~~~~ user.cpp:17:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x<0 || y<0 || x>=V.size() || y>=V[x].size()) return 0; ~^~~~~~~~~~~~~ user.cpp:22:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (K==values.size()) return 1; ~^~~~~~~~~~~~~~~ user.cpp: In function ‘vPos found(T, Vector)’: user.cpp:37:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<V.size();i++) ~^~~~~~~~~ user.cpp:38:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0;j<V.size();j++) ~^~~~~~~~~