Compilare: main.cpp: In function 'int main()': main.cpp:68:15: warning: unused variable 'k' [-Wunused-variable] 68 | int n,m,c,k,i,j,x=0,kon=1; | ^ main.cpp:68:19: warning: unused variable 'j' [-Wunused-variable] 68 | int n,m,c,k,i,j,x=0,kon=1; | ^ main.cpp:75:13: warning: iteration 500004 invokes undefined behavior [-Waggressive-loop-optimizations] 75 | f[i]=1LL*f[i-1]*i%MOD; | ~~~~^~~~~~~~~~~~~~~~~ main.cpp:74:14: note: within this loop 74 | for(i=1;i<=NMAX1;i++) | ~^~~~~~~