Compilare: main.cpp: In function 'int main()': main.cpp:23:28: warning: array subscript has type 'char' [-Wchar-subscripts] dp[j][j+1] = c[x[j]][x[j+1]]; ^ main.cpp:23:36: warning: array subscript has type 'char' [-Wchar-subscripts] dp[j][j+1] = c[x[j]][x[j+1]]; ^ main.cpp:29:76: warning: array subscript has type 'char' [-Wchar-subscripts] dp[j][d] = min(dp[j][d], dp[j+1][k-1] + dp[k+1][d] + c[x[j]][x[k]]); ^ main.cpp:29:82: warning: array subscript has type 'char' [-Wchar-subscripts] dp[j][d] = min(dp[j][d], dp[j+1][k-1] + dp[k+1][d] + c[x[j]][x[k]]); ^