Compilare: main.cpp: In function 'int main()': main.cpp:90:15: warning: unused variable 'nr_prime_cu_n_sub_p' [-Wunused-variable] 90 | long long nr_prime_cu_n_sub_p = 1; | ^~~~~~~~~~~~~~~~~~~ main.cpp:91:15: warning: unused variable 'nr_prime_cu_n_peste_p' [-Wunused-variable] 91 | long long nr_prime_cu_n_peste_p = ans; | ^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void ciur_eratostene()': main.cpp:31:20: warning: iteration 999999 invokes undefined behavior [-Waggressive-loop-optimizations] 31 | if (!ciur[i]) | ~~~~~~^ main.cpp:30:23: note: within this loop 30 | for (int i = 2; i <= 1000001; i++) | ~~^~~~~~~~~~