Compilare: main.cpp: In function 'int main()': main.cpp:53:12: warning: unused variable 's' [-Wunused-variable] 53 | ll s = 0; | ^ main.cpp:50:45: warning: iteration 100000 invokes undefined behavior [-Waggressive-loop-optimizations] 50 | for(ll i = 2; i <= 100002; i++) fact[i] = i * fact[i - 1] % mod; | ^ main.cpp:50:21: note: within this loop 50 | for(ll i = 2; i <= 100002; i++) fact[i] = i * fact[i - 1] % mod; | ~~^~~~~~~~~