lozinke.cpp: In function 'int main()':
lozinke.cpp:18:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
18 | for (int i = 0; i < a.size(); i++) {
| ~~^~~~~~~~~~
lozinke.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
19 | for (int j = 0; j < a.size(); j++) {
| ~~^~~~~~~~~~
lozinke.cpp:22:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
22 | for (int k = 0; k < a[i].size()-a[j].size()+1; k++) {
| ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~