Compilare: user.cpp: In function ‘int main()’: user.cpp:17:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[j][k]=1; ^ user.cpp:17:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[j][k]=1; ^ user.cpp:22:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[x][y]=0; ^ user.cpp:22:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[x][y]=0; ^ user.cpp:23:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[y][x]=0;} ^ user.cpp:23:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] prieten[y][x]=0;} ^ user.cpp:26:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[1][j]=1; ^ user.cpp:31:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[j][k]==1&&prieten[k][j]==1)dp[i][j]+=dp[i-1][k]; ^ user.cpp:31:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[j][k]==1&&prieten[k][j]==1)dp[i][j]+=dp[i-1][k]; ^ user.cpp:31:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[j][k]==1&&prieten[k][j]==1)dp[i][j]+=dp[i-1][k]; ^ user.cpp:31:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[j][k]==1&&prieten[k][j]==1)dp[i][j]+=dp[i-1][k]; ^ user.cpp:31:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[j][k]==1&&prieten[k][j]==1)dp[i][j]+=dp[i-1][k]; ^ user.cpp:31:70: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(prieten[j][k]==1&&prieten[k][j]==1)dp[i][j]+=dp[i-1][k]; ^ user.cpp:37:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum+=dp[n][j]; ^