Compilare: main.cpp: In function 'void solve()': main.cpp:21:20: warning: array subscript has type 'char' [-Wchar-subscripts] 21 | int ans=s[a[px]][px]; | ^ main.cpp:58:22: warning: array subscript has type 'char' [-Wchar-subscripts] 58 | ans+=ib[a[px]]*inv+nb[a[px]]*nor; | ^ main.cpp:58:36: warning: array subscript has type 'char' [-Wchar-subscripts] 58 | ans+=ib[a[px]]*inv+nb[a[px]]*nor; | ^ main.cpp:62:22: warning: array subscript has type 'char' [-Wchar-subscripts] 62 | ans+=ib[a[px]]*nor+nb[a[px]]*inv; | ^ main.cpp:62:36: warning: array subscript has type 'char' [-Wchar-subscripts] 62 | ans+=ib[a[px]]*nor+nb[a[px]]*inv; | ^ main.cpp:65:32: warning: array subscript has type 'char' [-Wchar-subscripts] 65 | g<<(!isinv?a[px]:(opp[a[px]]))<<' '<<ans<<'\n'; | ^ main.cpp: In function 'int32_t main()': main.cpp:78:16: warning: array subscript has type 'char' [-Wchar-subscripts] 78 | nb[a[i]]++; | ^ main.cpp:79:20: warning: array subscript has type 'char' [-Wchar-subscripts] 79 | ib[opp[a[i]]]++; | ^ main.cpp:79:20: warning: array subscript has type 'char' [-Wchar-subscripts] 79 | ib[opp[a[i]]]++; | ~~~~~~~~^ main.cpp:87:15: warning: array subscript has type 'char' [-Wchar-subscripts] 87 | s[a[i]][i]++; | ^ main.cpp:72:15: warning: iteration 25 invokes undefined behavior [-Waggressive-loop-optimizations] 72 | opp[i]=i-'a'+'A'; | ~~~~~~^~~~~~~~~~ main.cpp:70:20: note: within this loop 70 | for(int i='a';i<='z';i++) | ~^~~~~