Compilare: main.cpp: In function 'int main()': main.cpp:146:23: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare] 146 | if(ok == -1) | ~~~^~~~~ main.cpp:201:51: warning: array subscript has type 'char' [-Wchar-subscripts] 201 | ans = ans + 1LL * fib[v[i][j].first]; | ~~~~~~~~^~~~~ main.cpp:261:55: warning: array subscript has type 'char' [-Wchar-subscripts] 261 | ans = ans + 1LL * fib[v[i][j].first]; | ~~~~~~~~^~~~~