Compilare: main.cpp: In function 'void gen_ciur()': main.cpp:20:28: warning: comparison of integer expressions of different signedness: 'int' and 'const long long unsigned int' [-Wsign-compare] 20 | for(int j=2;i*j<=MAX;++j) | ~~~^~~~~ main.cpp:22:18: warning: comparison of integer expressions of different signedness: 'int' and 'const long long unsigned int' [-Wsign-compare] 22 | for(int i=2;i<=MAX;++i) | ~^~~~~ main.cpp: In function 'void solve(int)': main.cpp:37:9: warning: unused variable 'nr' [-Wunused-variable] 37 | int nr=0; | ^~ main.cpp: In function 'void gen_ciur()': main.cpp:23:18: warning: iteration 999998 invokes undefined behavior [-Waggressive-loop-optimizations] 23 | if(ciur[i]==0)prime[ind++]=i; | ~~~~~~^ main.cpp:22:18: note: within this loop 22 | for(int i=2;i<=MAX;++i) | ~^~~~~