Compilare: main.cpp: In function 'int main()': main.cpp:36:9: warning: variable 's' set but not used [-Wunused-but-set-variable] int s=1; ^ main.cpp:39:16: warning: iteration 1000000 invokes undefined behavior [-Waggressive-loop-optimizations] fact[i]=(fact[i-1]*i)%mod; ~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:38:18: note: within this loop for(int i=1;i<=MAXX ;i++) ^