Compilare: main.cpp: In function 'int main()': main.cpp:29:17: warning: array subscript has type 'char' [-Wchar-subscripts] if (dp[v[n][0]] + 1 > dp[*v[n].rbegin()]) { ^ main.cpp:29:42: warning: array subscript has type 'char' [-Wchar-subscripts] if (dp[v[n][0]] + 1 > dp[*v[n].rbegin()]) { ^ main.cpp:30:21: warning: array subscript has type 'char' [-Wchar-subscripts] dp[*v[n].rbegin()] = dp[v[n][0]] + 1; ^ main.cpp:30:35: warning: array subscript has type 'char' [-Wchar-subscripts] dp[*v[n].rbegin()] = dp[v[n][0]] + 1; ^ main.cpp:31:32: warning: array subscript has type 'char' [-Wchar-subscripts] m = max(m, dp[*v[n].rbegin()]); ^ main.cpp:32:30: warning: array subscript has type 'char' [-Wchar-subscripts] if (m == dp[*v[n].rbegin()]) { ^ main.cpp:35:27: warning: array subscript has type 'char' [-Wchar-subscripts] pred[n] = ultim[v[n][0]]; ^ main.cpp:36:24: warning: array subscript has type 'char' [-Wchar-subscripts] ultim[*v[n].rbegin()] = n; ^