Compilare: user.cpp: In function ‘int cauta(int)’: user.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0;i <v[hashKey].size(); i++) ^ user.cpp:15:9: warning: unused variable ‘gasit’ [-Wunused-variable] int gasit = 0, hashKey = number % modulo; ^ user.cpp: In function ‘int main()’: user.cpp:71:21: warning: unused variable ‘x’ [-Wunused-variable] int x = a[i]; ^ user.cpp:72:21: warning: unused variable ‘y’ [-Wunused-variable] int y = a[j]; ^ user.cpp:48:15: warning: unused variable ‘caz’ [-Wunused-variable] int n, i, caz, number ,t, sol = 0, j; ^ user.cpp:48:20: warning: unused variable ‘number’ [-Wunused-variable] int n, i, caz, number ,t, sol = 0, j; ^