Compilare: user.cpp: In function ‘short int GetDist(short int, short int)’: user.cpp:28:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] return len[x]+len[y]-2*dp[len[x]][len[y]]; ^ user.cpp:28:45: warning: array subscript has type ‘char’ [-Wchar-subscripts] return len[x]+len[y]-2*dp[len[x]][len[y]]; ^ user.cpp: In function ‘int main()’: user.cpp:41:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<aux.size();i++) ^