Compilare: user.cpp: In function ‘int main()’: user.cpp:19:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(int i=1;i<=n-1;i++)ans[i][i+1]=cost[c[i]][c[i+1]]; ^ user.cpp:19:57: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(int i=1;i<=n-1;i++)ans[i][i+1]=cost[c[i]][c[i+1]]; ^ user.cpp:23:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i][j-2]+cost[c[j-1]][c[j]]); ^ user.cpp:23:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i][j-2]+cost[c[j-1]][c[j]]); ^ user.cpp:24:54: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i+2][j]+cost[c[i]][c[i+1]]); ^ user.cpp:24:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i+2][j]+cost[c[i]][c[i+1]]); ^ user.cpp:25:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i+1][j-1]+cost[c[i]][c[j]]); ^ user.cpp:25:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i+1][j-1]+cost[c[i]][c[j]]); ^ user.cpp:27:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i][k]+cost[c[k+1]][c[k+2]]+ans[k+3][j]); ^ user.cpp:27:64: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[i][j]=min(ans[i][j],ans[i][k]+cost[c[k+1]][c[k+2]]+ans[k+3][j]); ^