Compilare: main.cpp: In function 'int main()': main.cpp:59:30: warning: iteration 1001 invokes undefined behavior [-Waggressive-loop-optimizations] 59 | fact[i] = (fact[i - 1] * i) % MOD; | ~~~~~~~~~~^ main.cpp:58:22: note: within this loop 58 | for(int i = 1; i < MOD; i++){ | ~~^~~~~ main.cpp:64:16: warning: iteration 999 invokes undefined behavior [-Waggressive-loop-optimizations] 64 | Inv[i] = MOD - (Inv[MOD % i] * (MOD / i)) % MOD; | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:63:22: note: within this loop 63 | for(int i = 2; i < MOD; i++){ | ~~^~~~~ main.cpp: In function 'long long int modFact(long long int)': main.cpp:36:18: warning: array subscript 666012 is above array bounds of 'long long int [1001]' [-Warray-bounds] 36 | return (lgPow(fact[MOD - 1], x / MOD) * fact[x % MOD]) % MOD; | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:14:5: note: while referencing 'fact' 14 | int fact[NMAX + 1]; | ^~~~