Compilare: main.cpp: In function 'int main()': main.cpp:24:17: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | sum[s[i]]=((sum[s[i]]-sub[s[i]]*(i-lcheck[s[i]]))%MOD+MOD)%MOD; | ^ main.cpp:24:29: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | sum[s[i]]=((sum[s[i]]-sub[s[i]]*(i-lcheck[s[i]]))%MOD+MOD)%MOD; | ^ main.cpp:24:39: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | sum[s[i]]=((sum[s[i]]-sub[s[i]]*(i-lcheck[s[i]]))%MOD+MOD)%MOD; | ^ main.cpp:24:55: warning: array subscript has type 'char' [-Wchar-subscripts] 24 | sum[s[i]]=((sum[s[i]]-sub[s[i]]*(i-lcheck[s[i]]))%MOD+MOD)%MOD; | ^ main.cpp:25:26: warning: array subscript has type 'char' [-Wchar-subscripts] 25 | sol=(sol+sum[s[i]])%MOD; | ^ main.cpp:26:20: warning: array subscript has type 'char' [-Wchar-subscripts] 26 | lcheck[s[i]]=i; | ^ main.cpp:27:17: warning: array subscript has type 'char' [-Wchar-subscripts] 27 | sub[s[i]]=(sub[s[i]]+i+1)%MOD; | ^ main.cpp:27:28: warning: array subscript has type 'char' [-Wchar-subscripts] 27 | sub[s[i]]=(sub[s[i]]+i+1)%MOD; | ^ main.cpp:28:17: warning: array subscript has type 'char' [-Wchar-subscripts] 28 | sum[s[i]]=(sum[s[i]]+(i+1)*(n-i)); | ^ main.cpp:28:28: warning: array subscript has type 'char' [-Wchar-subscripts] 28 | sum[s[i]]=(sum[s[i]]+(i+1)*(n-i)); | ^