Compilare: main.cpp: In function 'int main()': main.cpp:42:34: warning: array subscript has type 'char' [-Wchar-subscripts] 42 | dp[j][k]=cost[s[j]][s[k]]; | ~~~^ main.cpp:42:40: warning: array subscript has type 'char' [-Wchar-subscripts] 42 | dp[j][k]=cost[s[j]][s[k]]; | ~~~^ main.cpp:46:47: warning: array subscript has type 'char' [-Wchar-subscripts] 46 | dp[j][k]=dp[j+1][k-1]+cost[s[j]][s[k]]; | ~~~^ main.cpp:46:53: warning: array subscript has type 'char' [-Wchar-subscripts] 46 | dp[j][k]=dp[j+1][k-1]+cost[s[j]][s[k]]; | ~~~^