Borderou de evaluare (job #687986)

Compilare: main.cpp: In function 'int length(std::string)': main.cpp:12:21: warning: unused variable 'i' [-Wunused-variable] 12 | int i = 1; | ^ main.cpp:11:19: warning: unused variable 'ch' [-Wunused-variable] 11 | for (char ch : mesaj){ | ^~ main.cpp:14:1: warning: no return statement in function returning non-void [-Wreturn-type] 14 | } | ^ main.cpp: In function 'int main()': main.cpp:27:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 27 | while(i <= mesajenc.length()){ | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:36:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'unsigned int'} [-Wsign-compare] 36 | for (int i = 0; i < mesaje.size(); i++){ | ~~^~~~~~~~~~~~~~~ main.cpp:38:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 38 | for (int j = 0; j < mesaje.at(i).length(); j++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 42 | for (int j = 0; j < mesaje.at(i).length(); j++){ | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:50:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 50 | for (int j = 0; j < mesajenc.size()/n; j++){ | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 16 | freopen("codificare.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 17 | freopen("codificare.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~