Compilare: main.cpp: In function 'int main()': main.cpp:47:51: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 47 | for( int i = (k+1)*(n/4); subs.size() < n/2; i++) | ~~~~~~~~~~~~^~~~~ main.cpp:61:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for(int i = 0; i < subs.size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:65:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for(int i = 0; i < subs.size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:70:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for(int i = 0; i < vsubs.size(); i++) | ~~^~~~~~~~~~~~~~