Compilare: main.cpp: In function 'int main()': main.cpp:46:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | if(n < presum.size()) { | ~~^~~~~~~~~~~~~~~ main.cpp:42:22: warning: unused variable 'cycle' [-Wunused-variable] 42 | int n, t1, t2, t3, cycle; | ^~~~~