Borderou de evaluare (job #834927)

Compilare: main.cpp: In function 'bool dfs()': main.cpp:19:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | if (i >= s.size()) { | ~~^~~~~~~~~~~ main.cpp:30:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | if (i >= s.size() || s[i] != '(') { | ~~^~~~~~~~~~~ main.cpp:39:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | if (i >= s.size() || s[i] != ',') { | ~~^~~~~~~~~~~ main.cpp:47:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | if (i >= s.size() || s[i] != ')') { | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | if(!dfs() || i != s.size())cout<<"-1"; | ~~^~~~~~~~~~~