Compilare: main.cpp: In function 'int main()': main.cpp:107:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for(int i=1;i<=euler.size();i++) | ~^~~~~~~~~~~~~~ main.cpp:111:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 111 | for(int i=1;i+(1<<j)-1<=euler.size();i++) | ~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:102:17: warning: iteration 29999 invokes undefined behavior [-Waggressive-loop-optimizations] 102 | bestj[i]=bestj[i-1]; | ~~~~~~~~^~~~~~~~~~~ main.cpp:100:18: note: within this loop 100 | for(int i=2;i<=30001;i++) | ~^~~~~~~