Compilare: main.cpp: In function 'int main()': main.cpp:35:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for (int i=0;i<a.size();i++) | ~^~~~~~~~~ main.cpp:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i=0;i<b.size();i++) | ~^~~~~~~~~ main.cpp: In function 'int expo(int, int)': main.cpp:28:1: warning: control reaches end of non-void function [-Wreturn-type] 28 | } | ^ main.cpp: In function 'int main()': main.cpp:78:13: warning: 'hash_a' may be used uninitialized [-Wmaybe-uninitialized] 78 | if (hash_b[i+a.size()-1]/expo(B,i)==hash_a) | ^~ main.cpp:31:9: note: 'hash_a' was declared here 31 | int hash_a,numere=0; | ^~~~~~