Compilare: main.cpp: In function 'int main()': main.cpp:31:30: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | dp[i][i + 1] = c[s[i]][s[i + 1]]; | ^ main.cpp:31:40: warning: array subscript has type 'char' [-Wchar-subscripts] 31 | dp[i][i + 1] = c[s[i]][s[i + 1]]; | ^ main.cpp:37:49: warning: array subscript has type 'char' [-Wchar-subscripts] 37 | dp[j][i] = dp[j + 1][i - 1] + c[s[j]][s[i]]; | ^ main.cpp:37:55: warning: array subscript has type 'char' [-Wchar-subscripts] 37 | dp[j][i] = dp[j + 1][i - 1] + c[s[j]][s[i]]; | ^