Compilare: user.cpp: In function ‘int main()’: user.cpp:20:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cuv[a][b] == 0 && cuv[b][a] == 0 && a != b) ^ user.cpp:20:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cuv[a][b] == 0 && cuv[b][a] == 0 && a != b) ^ user.cpp:20:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cuv[a][b] == 0 && cuv[b][a] == 0 && a != b) ^ user.cpp:20:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cuv[a][b] == 0 && cuv[b][a] == 0 && a != b) ^ user.cpp:23:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] cuv[a][b] = cuv[b][a] = 1; ^ user.cpp:23:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] cuv[a][b] = cuv[b][a] = 1; ^ user.cpp:23:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] cuv[a][b] = cuv[b][a] = 1; ^ user.cpp:23:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] cuv[a][b] = cuv[b][a] = 1; ^ user.cpp:26:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a == b && cuv[a][a] == 0) ^ user.cpp:26:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (a == b && cuv[a][a] == 0) ^ user.cpp:29:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] cuv[a][a] = 1; ^ user.cpp:29:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] cuv[a][a] = 1; ^