Compilare: user.cpp: In function ‘int main()’: user.cpp:15:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s1][s2]=1; ^ user.cpp:15:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s1][s2]=1; ^ user.cpp:16:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s2][s1]=1; ^ user.cpp:16:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[s2][s1]=1; ^ user.cpp:19:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[1][i]=1; ^ user.cpp:24:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[lc][la]==0) ^ user.cpp:24:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[lc][la]==0) ^ user.cpp:25:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[j][lc]=(dp[j][lc]+dp[j-1][la])% mod; ^ user.cpp:25:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[j][lc]=(dp[j][lc]+dp[j-1][la])% mod; ^ user.cpp:25:61: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[j][lc]=(dp[j][lc]+dp[j-1][la])% mod; ^ user.cpp:28:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] s=s+dp[n][l]; ^