Compilare: main.cpp: In function 'int main()': main.cpp:9:21: warning: unused variable 'prod' [-Wunused-variable] 9 | long long a, b, prod, r, aux, x; | ^~~~ main.cpp:12:15: warning: iteration 100099 invokes undefined behavior [-Waggressive-loop-optimizations] 12 | if(c[i]==0) | ~~~^ main.cpp:10:14: note: within this loop 10 | for(i=2;i<=100101;i++) | ~^~~~~~~~ main.cpp:23:15: warning: iteration 100099 invokes undefined behavior [-Waggressive-loop-optimizations] 23 | if(c[i]==0) | ~~~^ main.cpp:21:14: note: within this loop 21 | for(i=2;i<=100101;i++) | ~^~~~~~~~