Compilare: main.cpp: In function 'int getFirstHashVal(int, unsigned int, unsigned int)': main.cpp:38:8: warning: unused variable 'val' [-Wunused-variable] int val = getVal(s1[i]); ^~~ main.cpp:43:8: warning: unused variable 'val' [-Wunused-variable] int val = getVal(s2[i]); ^~~ main.cpp: In function 'int main()': main.cpp:84:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < ans.size(); i++) ~~^~~~~~~~~~~~