Compilare: main.cpp: In function 'int main()': main.cpp:89:24: warning: unused variable 'j' [-Wunused-variable] 89 | long long n,a,b,i,j,k,l,t,op,st,mij,dr; | ^ main.cpp:89:26: warning: unused variable 'k' [-Wunused-variable] 89 | long long n,a,b,i,j,k,l,t,op,st,mij,dr; | ^ main.cpp:89:28: warning: unused variable 'l' [-Wunused-variable] 89 | long long n,a,b,i,j,k,l,t,op,st,mij,dr; | ^ main.cpp:89:35: warning: unused variable 'st' [-Wunused-variable] 89 | long long n,a,b,i,j,k,l,t,op,st,mij,dr; | ^~ main.cpp:89:38: warning: unused variable 'mij' [-Wunused-variable] 89 | long long n,a,b,i,j,k,l,t,op,st,mij,dr; | ^~~ main.cpp:89:42: warning: unused variable 'dr' [-Wunused-variable] 89 | long long n,a,b,i,j,k,l,t,op,st,mij,dr; | ^~ main.cpp:100:17: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations] 100 | invs2[i]=inv(fact2[i],mod2-2,mod2); | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:95:14: note: within this loop 95 | for(i=1;i<=100005;i++) | ~^~~~~~~~