Compilare: main.cpp: In function 'int main()': main.cpp:21:16: warning: array subscript has type 'char' [-Wchar-subscripts] DP[S[i]][1] = max(DP[S[i]][1], 1); ^ main.cpp:21:34: warning: array subscript has type 'char' [-Wchar-subscripts] DP[S[i]][1] = max(DP[S[i]][1], 1); ^ main.cpp:24:33: warning: array subscript has type 'char' [-Wchar-subscripts] if(DP[k][1]) DP[S[i]][0] = max(1 + DP[k][1], DP[S[i]][0]); ^ main.cpp:24:65: warning: array subscript has type 'char' [-Wchar-subscripts] if(DP[k][1]) DP[S[i]][0] = max(1 + DP[k][1], DP[S[i]][0]); ^ main.cpp:27:33: warning: array subscript has type 'char' [-Wchar-subscripts] if(DP[k][0]) DP[S[i]][1] = max(1 + DP[k][0], DP[S[i]][1]); ^ main.cpp:27:65: warning: array subscript has type 'char' [-Wchar-subscripts] if(DP[k][0]) DP[S[i]][1] = max(1 + DP[k][0], DP[S[i]][1]); ^ main.cpp:29:26: warning: array subscript has type 'char' [-Wchar-subscripts] ans = max(DP[S[i]][0], max(DP[S[i]][1], ans)); ^ main.cpp:29:43: warning: array subscript has type 'char' [-Wchar-subscripts] ans = max(DP[S[i]][0], max(DP[S[i]][1], ans)); ^