Compilare: main.cpp: In function 'int main()': main.cpp:85:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(int k=0;k<pushagain.size();k++) | ~^~~~~~~~~~~~~~~~~ main.cpp:88:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 88 | for(int k=0;k<pushagain.size();k++) | ~^~~~~~~~~~~~~~~~~