Compilare: main.cpp: In function 'int main()': main.cpp:33:23: warning: unused variable 'm' [-Wunused-variable] long long int m=1,l=0; ^ main.cpp:33:27: warning: unused variable 'l' [-Wunused-variable] long long int m=1,l=0; ^ main.cpp:25:15: warning: iteration 1998499 invokes undefined behavior [-Waggressive-loop-optimizations] if(g[i]!=1){ ~~~^ main.cpp:24:31: note: within this loop for(long long int i=1501;i<=2000000;i++){ ~^~~~~~~~~ main.cpp:9:13: warning: iteration 1999999 invokes undefined behavior [-Waggressive-loop-optimizations] g[i]=i; ~~~~^~ main.cpp:8:28: note: within this loop for(long long int i=1;i<=2000000;i++){ ~^~~~~~~~~