Compilare: main.cpp: In function 'void zet(std::string, int)': main.cpp:23:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | while ( dr<s.size() && s[dr-st]==s[dr] ) | ~~^~~~~~~~~ main.cpp:37:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | while ( dr<s.size() && s[dr-st]==s[dr] ) | ~~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for (int i=0; i<a.size(); i++ ) | ~^~~~~~~~~ main.cpp:63:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (int i=0; i<a.size(); i++ ) | ~^~~~~~~~~ main.cpp:66:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for (int i=0; i<a.size()-s.size()+1; i++ ) | ~^~~~~~~~~~~~~~~~~~~~ main.cpp:75:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for (int i=1; i<=s.size()/2; i++ ) | ~^~~~~~~~~~~~ main.cpp:75:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 75 | for (int i=1; i<=s.size()/2; i++ ) | ^~~ main.cpp:78:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 78 | return 0; | ^~~~~~