Compilare: user.cpp: In function ‘int main()’: user.cpp:31:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i+1==j) dp[i][j]=c[s[i-1]][s[j-1]]; ^ user.cpp:31:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(i+1==j) dp[i][j]=c[s[i-1]][s[j-1]]; ^ user.cpp:39:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dp[i][j]>dp[i+1][k-1]+dp[k+1][j]+c[s[i]][s[k]]) ^ user.cpp:39:73: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(dp[i][j]>dp[i+1][k-1]+dp[k+1][j]+c[s[i]][s[k]]) ^ user.cpp:40:68: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[i][j]=dp[i+1][k-1]+dp[k+1][j]+c[s[i]][s[k]]; ^ user.cpp:40:74: warning: array subscript has type ‘char’ [-Wchar-subscripts] dp[i][j]=dp[i+1][k-1]+dp[k+1][j]+c[s[i]][s[k]]; ^