Compilare: main.cpp: In function 'int main()': main.cpp:156:41: warning: array subscript has type 'char' [-Wchar-subscripts] 156 | s = fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:162:41: warning: array subscript has type 'char' [-Wchar-subscripts] 162 | s = fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:170:42: warning: array subscript has type 'char' [-Wchar-subscripts] 170 | s += fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:180:41: warning: array subscript has type 'char' [-Wchar-subscripts] 180 | s = fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:193:41: warning: array subscript has type 'char' [-Wchar-subscripts] 193 | s = fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:198:42: warning: array subscript has type 'char' [-Wchar-subscripts] 198 | s += fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:217:45: warning: array subscript has type 'char' [-Wchar-subscripts] 217 | ans = ans + fib[v[i][j].first]; | ~~~~~~~~^~~~~