Compilare: main.cpp: In function 'int main()': main.cpp:123:15: warning: unused variable 'j' [-Wunused-variable] 123 | int n,m,i,j,t,x,y,b,c,q; | ^ main.cpp:123:27: warning: unused variable 'q' [-Wunused-variable] 123 | int n,m,i,j,t,x,y,b,c,q; | ^ main.cpp: In function 'void precalc()': main.cpp:22:16: warning: iteration 100005 invokes undefined behavior [-Waggressive-loop-optimizations] 22 | logn[i]=log(i); | ~~~~~~~^~~~~~~ main.cpp:21:18: note: within this loop 21 | for(int i=0;i<=NMAX;i++) | ~^~~~~~