Eroare de compilare: main.cpp: In function 'int main()': main.cpp:23:9: error: 'masca' was not declared in this scope masca = (1LL * masca * base) % mod; ^~~~~ main.cpp:25:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < b.size()) ~~^~~~~~~~~~ main.cpp:35:31: error: 'masca' was not declared in this scope B = (B - (1LL * bct * masca % mod) + mod) % mod; /// elimin prima litera ^~~~~ Non zero exit status: 1