Borderou de evaluare (job #714590)

Compilare: main.cpp: In function 'int main()': main.cpp:24:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 24 | for(i1=0;i1<s.size();i1++){ | ~~^~~~~~~~~ main.cpp:30:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 30 | while(i1<s.size()){ | ~~^~~~~~~~~ main.cpp:35:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 35 | while(s[i1]!='+' && i1<s.size()){ | ~~^~~~~~~~~