Compilare: main.cpp: In function 'int main()': main.cpp:28:33: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i][i + 1] = cost[s[i]][s[i + 1]]; ^ main.cpp:28:43: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i][i + 1] = cost[s[i]][s[i + 1]]; ^ main.cpp:33:60: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i][j] = min(dp[i][j - 2] + cost[s[j - 1]][s[j]], ^ main.cpp:33:66: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i][j] = min(dp[i][j - 2] + cost[s[j - 1]][s[j]], ^ main.cpp:34:56: warning: array subscript has type 'char' [-Wchar-subscripts] min(dp[i + 1][j - 1] + cost[s[i]][s[j]], ^ main.cpp:34:62: warning: array subscript has type 'char' [-Wchar-subscripts] min(dp[i + 1][j - 1] + cost[s[i]][s[j]], ^ main.cpp:35:56: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i + 2][j] + cost[s[i]][s[i + 1]])); ^ main.cpp:35:66: warning: array subscript has type 'char' [-Wchar-subscripts] dp[i + 2][j] + cost[s[i]][s[i + 1]])); ^