Borderou de evaluare (job #609551)

Compilare: main.cpp: In function 'int main()': main.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 16 | for(int i=1;i<c.size()-1;i++) | ~^~~~~~~~~~~ main.cpp:20:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 20 | for(int j=i+1;j<c.size();j++) | ~^~~~~~~~~ main.cpp:30:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 30 | for(int i=1;i<c.size()-1;i++) | ~^~~~~~~~~~~