Compilare: user.cpp: In function ‘int main()’: user.cpp:14:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s1][s2]=1; ^ user.cpp:14:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s1][s2]=1; ^ user.cpp:15:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s2][s1]=1; ^ user.cpp:15:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s2][s1]=1; ^ user.cpp:18:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[1][i]=1; ^ user.cpp:23:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[lc][la]==0) ^ user.cpp:23:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[lc][la]==0) ^ user.cpp:24:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[j][lc]=dp[j][lc]+dp[j-1][la]; ^ user.cpp:24:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[j][lc]=dp[j][lc]+dp[j-1][la]; ^ user.cpp:24:60: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[j][lc]=dp[j][lc]+dp[j-1][la]; ^ user.cpp:27:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] s=s+dp[n][l]; ^