Compilare: main.cpp: In function 'int main()': main.cpp:33:15: warning: array subscript has type 'char' [-Wchar-subscripts] dp[mask[i]] = max(dp[mask[i]], 1); ^ main.cpp:33:33: warning: array subscript has type 'char' [-Wchar-subscripts] dp[mask[i]] = max(dp[mask[i]], 1); ^ main.cpp:38:19: warning: array subscript has type 'char' [-Wchar-subscripts] dp[mask[i]] = max(dp[mask[i]], dp[j] + 1); ^ main.cpp:38:37: warning: array subscript has type 'char' [-Wchar-subscripts] dp[mask[i]] = max(dp[mask[i]], dp[j] + 1); ^ main.cpp:42:34: warning: array subscript has type 'char' [-Wchar-subscripts] maxim = max(maxim, dp[mask[i]]); ^