Borderou de evaluare (job #845637)

Compilare: main.cpp: In function 'int main()': main.cpp:8:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 8 | for(int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:10:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 10 | for(int idx = 0; idx < s.size(); idx++) { | ~~~~^~~~~~~~~~ main.cpp:7:26: warning: unused variable 'idx' [-Wunused-variable] 7 | string ans = ""; int idx = 0; | ^~~