Compilare: main.cpp: In function 'long long int brut(std::vector<int>)': main.cpp:9:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 9 | for(int i = 0; i < v.size(); ++i){ | ~~^~~~~~~~~~ main.cpp:10:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for(int j = i+1; j <= v.size(); ++j){ | ~~^~~~~~~~~~~ main.cpp:15:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for(int k = 0; k < vv.size(); ++k){ | ~~^~~~~~~~~~~