Borderou de evaluare (job #633570)

Compilare: main.cpp: In function 'long long int eval(std::string)': main.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 11 | for(int i = 0; i < s.size(); i++){ | ~~^~~~~~~~~~ main.cpp: In function 'int solve(long long int, long long int)': main.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 24 | for(int i = 1; i < sx.size(); i++){ | ~~^~~~~~~~~~~ main.cpp:27:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 27 | for(int j = 0; j < sx.size(); j++){ | ~~^~~~~~~~~~~