Compilare: main.cpp: In function 'int kmp(int, int)': main.cpp:27:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | for(int i = 1; i < a.size() && ok; i ++) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:129:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 129 | for(int i = 0; i < indexes.size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp:132:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 132 | for(int i = 0; i < indexes.size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp:138:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 138 | for(int i = 0; i < indexes.size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp:141:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for(int poz = 0; poz < indexes.size(); poz ++) | ~~~~^~~~~~~~~~~~~~~~ main.cpp:167:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 167 | for(int i = 0; i < indexes.size(); i ++) | ~~^~~~~~~~~~~~~~~~ main.cpp:170:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 170 | for(int poz = 0; poz < indexes.size(); poz ++) | ~~~~^~~~~~~~~~~~~~~~